Some cards have Samsung, some have Hynix memory. Also memory OC varies between cards.2/12/2019 9:39:46 AM

Pros: I bought 6x ASROCK vega 56 cards for gpu computing and mining workloads. Of these, 4x had Hynix HBM2 and 2x had Samsung HBM2. I have OC the Hynix cards memory between 925 - 950 MHz, Samsung between 890 - 940 MHz before errors occurred. So both the variants have hit / miss depending on your luck. To me it seems that Hynix memory has tighter timings, because the mining hashrate at same memory clock speed is higher compared to Samsung card.

Cons: The ASROCK sticker and the Serial number stickers tend to peel off after few days of use.

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A very versatile VEGA with 16GB HBM22/27/2018 5:43:55 PM

Pros: Loads of HBM2 for GPU intensive renders Mines Ethereum at 42MH/s (windows) and 40 MH/s (Linux using rocm) More stable than RX VEGA 64 and VEGA 56 Undervolting in Windows can lower power usage

Cons: More power consumption than RX VEGA, which makes the card stable. No undervolting support in LINUX!!!! (pp table is broken in linux driver) $$$$ is too expensive for what it is.

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Okay...ish4/2/2014 10:50:16 AM

Pros: Simultaneous Dual band, supports both 2.4, 5.8GHz bands. Sleek looking, with integrated antennae (good WAF). Guest network with web-login (2.4GHz only) Easily access router my typing ( myrouter.local ) in web browser address bar Seems stable (works without reboot for a few weeks) with a network of 10 devices including laptops, desktops, smartphones, printers, etc. Gigabit LAN.

Cons: One of the most difficult routers for the novice users to set up. The recommended way to setup with DVD is obsolete (None of my home computers have spinning disks / drives anymore) Menu is extremely complicated (Dyndns under security menu??) LAN IP addresses are 10.211.XXX.XXX (Seriously??) Sometimes accessing the router through web interface throws a "Bad Gateway error", and takes a good one minute to load Changing DNS servers is tucked away under local network menu instead of WAN menu. Changing some settings (like something under QoS menu or changing DNS server for e.g. )will crash the router and it will need a hard reboot. QoS implementation is a mess (reduced the speed of my 20MBps Internet to 12Mbps using both router's speedtest app as well as on my laptop) This router does not yet have a killer app/feature that distinguishes it from the rest of the simultaneous dual band products.

Overall Review: This router seems like a work in progress, with Linksys (Now Belkin) moving towards cloud accessibility of its routers and have started selling additional router apps. Most of the important settings are tucked away under random menu names. QoS needs a lot of polishing and is still beta IMO. Sometimes the 5.8GHz wireless SSID shows up as MarvellAP8X. Hopefully Linksys will fix these pending issues soon with a well tested firmware or allow open-source firmwares.

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Decent drive, looks beautiful, works well for backups2/22/2014 8:00:07 AM

Pros: This is a nice looking, (a good combo of glossy (on the sides) and matte on top / bottom) External USB 3 drive. Saw decent transfer rates between 50MB/s to 110MB/s when backing up data on it. Can stand both horizontally and vertically without any external attachments, which is a good feature that many external drives lack.

Cons: Slightly bulkier than other 2TB external hdds.

Overall Review: was pretty silent. usual usb3.0 data cable. an adapter needs to be plugged in to supply power.

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Good cables, colorful and flat2/2/2014 3:05:03 AM

Pros: It's an ethernet cable. It's colorful. Wife loves the bright color.

Cons: none

Overall Review: It's flat and I am not sure if it affects the signal or not. I am guessing it should not or it would not have met Cat 5e specs.

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Used it with my 2X R9 290X no difference1/22/2014 2:19:27 AM

Pros: no difference between OEM and this product.

Cons: did not help reduce temps of this hot gpu

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Bright, fast, quiet1/22/2014 2:09:39 AM

Pros: Bright fan, manually desoldered the LEDs ;) since it was used in my bedroom :) Moves a lot of air, and is pretty silent.

Cons: none

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Quiet and moves a lot of air1/22/2014 2:06:14 AM

Pros: Excellent fans for the money. Moves a lot of air and much quieter than 80mm fans. Very stable.

Cons: Fan speed could be faster.

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Excellent PSU, runs cool, auto on-off fan1/19/2014 5:35:35 PM

Pros: Great PSU, extremely efficient, runs cool. Fan turns off / on automatically. 6 PCIExpress connectors, and a whole lot of molex / sata connectors. It's modular as well.

Cons: None

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Excellent PSU12/26/2013 10:28:53 PM

Pros: This PSU has been working non-stop without issue with a 900W load. Efficiency is excellent and helps keeps the PSU cool.

Cons: plain jane :)

Overall Review: If it survives the first few days without a broken fan you are golden.

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Excellent Headset for Multiplayer FPS Gaming11/8/2013 4:59:21 AM

Pros: This is a great headset for multiplayer gaming due to the following reasons a) Comfortable fit b) Close fit cushion which filters outside noise c) Great Bass and Highs d) Mic is oriented nicely e) Ideal weight and balance making it comfortable for long gaming hours f) Volume control built in to the headset wire g) Drivers can clearly emit positional audio

Cons: The mid-range is not great, thus this headset is not good for listening to music. Difference is noticeable esp. when compared to Sennheiser HD201 which was my all purpose headset before CM Storm Pulse-R. But it just does not matter when FPS gaming.

Overall Review: The White light that illuminates the drivers, microphone and the the control looks cool at night, it surely makes your gaming ring that much cooler. The LEDs need power from a free USB port. I initially thought the headset had bulit-in USB sound card but that is not the case. BTW I used the headset with Creative Recon 3D soundcard which has a dedicated headset amp, and it works great with it.

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State of the Art GPU R9 290X10/30/2013 8:19:03 PM

Pros: Great GPU technology, which balances shader counts with other components so that you get fluid frame rates with all 3D effects enabled. I do not need my 7990 anymore since a single card suffices esp. for BF4.

Cons: Drivers are extremely iffy. R9 290X drivers are still in betal I had to restore my boot drive from backup because of failed installation of drivers which killed my Windows 7. Today 10/30/2013, AMD released beta 8 driver, which is slightly more stable in BF4.

Overall Review: AMD pull up your socks please and fix the drivers.

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Energy efficient LED Bulb with good color rendition10/18/2013 2:10:25 AM

Pros: It's a good LED bulb comparable to the LG LED bulbs available at Costco. The color rendition is good, slightly towards whitish yellow which is a pleasant color in my opinion. Light output is much brighter than a 40W bulb, infact it's a bit brighter than a LG LED bulb with similar specs.

Cons: The base gets very hot to the touch, although the dome remains cool.

Overall Review: It looks very similar to the GE LED bulb being sold in Supermarkets.

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Excellent everyday use zoom lens for Sony NEX10/17/2013 11:40:44 PM

Pros: If you are frustrated with the SEL1855 Kit zoom lens especially with subpar results like barrel distortions at the wide-end look no further. It beats the kit lens in almost all distortion related issues and has more zoom range viz. 16mm to 70mm. This lens is an ideal kit lens replacement and will improve results across the board. The lens is sharper as well as almost distortion free. OSS works well, and focusing speed is pretty good. It is not very heavy, about 25% heavier than the kit zoom lens. Constant aperture across the zoom range is a great feature especially when zooming in a movie. Finally the build quality is better than the kit lens.

Cons: The minimum distance to focus is almost 1ft which is a bit problematic. Not much change in Image Quality when compared to kit lens.

Overall Review: The lens is made in Thailand, and comes with a certificate of inspection. It takes 55mm filters. Comes with a Zeiss sticker ;)

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Good card for the money, with some minor drawbacks9/11/2013 1:19:21 AM

Pros: These are Two Radeon 7970 cards combined into a single graphics card. Gaming performance is increased by using crossfire. They also work nicely in Linux for mining Litecoins, etc.

Cons: The fans have very flimsy blades, I broke two fan blades with my finger alone while tinkering with the card. This is totally not acceptable. The 7970 chips used in the car do not look like they are binned are produce a lot of heat. One of my cards failed, but was promtly RMAd by the nice folks at Powercolor.

Overall Review: Takes up 3 slots and 3 PCIE power cables.

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Great Gigabit Ethernet Switch with Jumbo frames support9/7/2013 6:08:18 PM

Pros: This is a non-blocking (i.e. bandwidth between any pair of port is independent of other pair), full duplex 5 port Gigabit switch with nice sturdy metallic construction and supports jumbo frame support. There are 2 LED per port, one green (Gigabit/s) and one orange (100Mbit/s) to identify port speed. There's a green power LED as well. It connects flawlessly with laptops, desktops, and other ethernet switches. It does not heat up, stays lukewarm even when all ports are operational.

Cons: None

Overall Review: I opened up the switch and found an ASIC on which a black heatsink was glued on to. The five connectors are grouped into 2 groups, one group with 4 connectors and another with 1 connector. I tested the switch with Linux desktops, Windows 7 desktop, and a Macbook Pro Thunderbolt ethernet. I initiated file transfers from the laptop to /dev/zero of a linux desktop. The speed was 112MByte/sec. Simultaneously I transferred files from Windows desktop to another Linux desktop. There was no effect whatsoever in speed of the two parallel transfers. The switch is similar in size to a 3Com 5 port desktop Gigabit ethernet switch.

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Decent router that looks very nice and works fine with some quirks8/29/2013 4:29:44 PM

Pros: The router is a Piano black cylindrical device with a high WAF, which is a very good Applesque design and can be a conversation starter. The router also does not get too hot and remains slightly warm when operational. The WAN / internet LED is a smart light in the sense that it senses an actual connection to the Internet and not just a cabled plugged into an ethernet port. The router web interface seemed to have an inactivity logout timer which is a good thing if the window is left on by mistake on a shared computer. All the clients TCP / UDP sessions are visible under the Internet Sessions menu of the router and is helpful for debugging and security audits. With QoS enabled and with a simultaneous continuous upload session to my cloud server, latency increased just a bit to 17ns and download speeds remained at 10Mbps.

Cons: A minor irritation of this router is that almost all modifications require a lengthy reboot session of the order of 40 - 60 secs. Sometimes the router would not behave as intended after reboot and would drop connections and would have to be reboot once more. For some unknown reason one of my mbp shows up as 802.11a device @ 243Mbps in the Wifi status page, when infact I had setup the 5GHz Wifi Access Point to work only as 802.11n. In the WPS menu with PIN option there is a typo and "within is printed as winth" With automatic upload speed detection, WiFi security is not enabled immediately at bootup and some clients can connect to the router at that time without WPA / WEP. Security is enabled after a minute or so and the clients then disconnect and reconnect, which could be an annoyance and a minor security issue. WiFi allows guest SSID, but bandwidth control is not available for guest SSID. QoS automatic bandwidth calculation did not work well. It calculated my upload speed as 3.3Mbps while it's actually 1Mbps, as advertised and tested through There are no LED for the ethernet ports to either indicate connectivity or the speed like 100/1000Mbps. The antennae are integrated within the device which seems to reduce the range.

Overall Review: There are two LED at the front; one for power and another for showing internet connectivity. Both LED can change colors form orange to green. The WAN / internet LED is a smart light in the sense that it senses an actual connection to the Internet and not just a cabled plugged into an ethernet port. At the back there are 5 gigabit ethernet ports, one for WAN and 4 for LAN connectivity. There's a power switch and WPS, reset buttons. The router is powered by a 120V/230V wall wart with slightly short power cable. The web interface is the usual DLink orange/ grey interface with additional menu items tailored for this specific router. To test Wifi the router was setup at a height of 3.5 feet from ground and the laptop (Macbook pro retina display 15" also kept at similar height). I used 5Ghz Wifi Channel 36 as well as 149. It works well with a Macbook pro retina, A macbook pro 15", and a mobile device viz. Nokia N9. WiFi throughput between a wired gigabit server and my Macbook Pro 802.11n using the 5GHz band ranged from 50Mbps to 80Mbps, which is marginal at best. During the test no other device used the channel. WAN ethernet port supports Gbps, and the router claims to support true gigabit hardware routing. It may be a great feature for extremely fast internet connection, but with my 10Mbps down / 1Mbps up connection, it disabled QoS bandwidth shaping and SPI firewall and produced no perceivable difference in normal web browsing use. With true gigabit routing enabled, QoS traffic shaping was disabled. To test the performance as a home user, I started a file upload session to a web server and simultaneously used to check my bandwidth and latency. Latency increased quite a bit from 11ns to 300ns, speed of opening webpages slowed down, even though download bandwidth stayed at 10Mbps. I would thus favor QoS over true gigabit routing for my type of xx MBps internet connection. A cat6 cable instead of a Cat5e could have been bundled with the router considering it's a gigabit router.

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Overall this is a feature rich router with some drawbacks which when correctly implemented would make it a great router and newbie friendly.8/19/2013 10:41:37 PM

Pros: The router is a piano black color and has rectangular corners. Three external antenna need to be manually attached to the SMA connectors on the back. There are 4 gigabit ethernet LAN ports, one WAN port, and two USB ports to attach storage devices or a printer. Since many ink jets printers on the market are already wifi enabled the printer support may not be a deal breaker for many. The front panel has a power LED, a cryptic system LED, 2 wifi leds, 4 LAN leds, one internet led and one WAN led, all blue in color. On the back 2 green LED show connected status of 2 usb ports. The router supports simultaneous 2.4GHz and 5GHz Wifi which works well at home these days since laptops and desktops can use the 5GHz band while smartphones and printers can use the 2.4GHz. One cool feature is that the Wifi location can be changed to different countries and one can thus unlock additional wifi channels. The two wireless LED icons look very similar at the first glance, the slightly wider one being the one for 5GHz. Legend of the wifi icons is printed at the bottom of the router. I uploaded 130617 firmware from TP link website. The upgrade process was smooth and effortless. Upon restart I could not wirelessly connect to the router because it had reverted to the default wireless SSID and WPA passwords which is not printed in the quick start guide. Thus I had to reach it through a wired ethernet connection on a LAN port to upload my saved configuration file. Bandwidth control works beautifully and is well implemented on this router. I was using 2 mbp and one iMac on the 5GHz interface, and one windows pc, 4 linux pcs on the ethernet. Even when the 2 mbp were uploading files using sftp, and the windows pc was downloading a file using sftp from my cloud server, no apparent network congestion could be ascertained by the iMac. Moreover this feature worked excellently to control the bandwidth for guest Wifi SSID, which is great if you leave the guest SSID open since unwanted guests would be unable to hog all the bandwidth. I placed the router on a nonmetallic bench 4ft high with antennae perpendicular to the ground. My macbook pro laptops were at 2.5 ft height from ground, and my iMac was at ~ 3.5 ft height. The distance from router to these computers was around 12 - 14ft. To test wireless throughput I uploaded a 4GB file from a macbook pro retina using the wifi interface to a wired ethernet linux PC and also a wired ethernet windows desktop connected to the gigabit ethernet ports of the router. I then downloaded the file back to the macbook pro. The wifi channel width was set to 40MHz, Channel 149 and Mode to 11n only. For most parts the speed ranged from 11MBytes/sec to 13Mbytes/sec which are very respectable speeds with 5Ghz 802.11n. The useful range of the 5Ghz wifi (when download speed drops to 5MB/s) was more or less 30ft in my home which is built mainly with wood. It may be lower for concrete homes. This amounts to the average range of 2 roo

Cons: There is no way to figure out if the LAN device is 1Gbps or 100Mbps or for that matter 10Mbps, but the led can tell you if the device is 0Mbps. The Ethernet ports LED lights flash in a weird stroboscopic fashion, which is usually found in malfunctioning devices. TP Link should revert to normal ethernet switch led flashing scheme. My router did not ship with an user guide so I downloaded the pdf from the website and it is highly recommended to do so. One disconcerting feature of the 5GHz Wifi radio of this router is that it was not entirely compatible with my smartphone, a Nokia N9 which is a Wifi 802.11n 5GHz and 2.4GHz compatible device. I like to use the 5GHz Wifi on my smart phone to free up the 2.4GHz bands on it for bluetooth communications. On this router the smart phone just could not keep connected using the 5GHz radio even though it had no problems using the 2.4GHz SSID. I tried a few combinations in the router like setting 20MHz channel width, 11an mixed, Auto channel but to no avail. The phone has no problem connecting to the Linksys e3000 on its 5GHz radio. I like to set permanent IP addresses for a few on my computers and printers. Doing this task was very tedious on this router since it is not possible to select computers directly from the DHCP screen and assign permanent IP address. One has to manually copy and paste MAC addresses for each reservation. This is one are which need improvements. Linksys E 3000 is a good example of a router where this task is easy and intuitive. The only drawback of bandwidth control on this router is that one has to manually specify the WAN upload and download bandwidths. I suggest first disabling bandwidth control and then use a website like to check actual WAN bandwidth.

Overall Review: To test wireless throughput I uploaded a 4GB file from a macbook pro retina using the wifi interface to a wired ethernet linux PC and also a wired ethernet windows desktop connected to the gigabit ethernet ports of the router. I then downloaded the file back to the macbook pro. The wifi channel width was set to 40MHz, Channel 149 and Mode to 11n only. For most parts the speed ranged from 11MBytes/sec to 13Mbytes/sec which are very respectable speeds with 5Ghz 802.11n. The useful range of the 5Ghz wifi (when download speed drops to 5MB/s) was more or less 30ft in my home which is built mainly with wood. It may be lower for concrete homes. This amounts to the minimum range of 2 rooms down for most american homes. The useful range of 2.4GHz wifi was very similar to the 5GHz wifi although 30 ft away the signal bars still showed full for the 2.4GHz SSID while the 5GHz SSID was showing just 2 bars. Many times one would want to share wifi with guests without fumbling around for the wpa password. This router supports setting up an additional SSID for guest network and one can control both the upload and download bandwidths for guest SSID. I think this is an excellent feature and bandwidth control worked excellently. I reduced the speed to 1Mbps down and 128kbps up, and verified it by using

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good card P31000 score in 3dmark vantage10/4/2012 1:22:27 AM

Pros: As good as two 7970 cards. Can overclock well. GPU score is 42375 in 3dmark vantage performance preset

Cons: Huge, much bigger than a reference 7970. Gets hot quickly. Voltage on GPU2 cannot be controlled even with ULPS disabled in registry.

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great board9/26/2012 7:59:07 PM

Pros: reliable board, loads of features.

Cons: 2nd and 3rd pci-express slots are bit too close

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Good case for those on budget9/13/2012 5:30:11 PM

Pros: Using it with a Z77 ATX board. Fit is tight with 3 hard drives and two Radeon 7970 Graphics card. Plenty of breathing holes to keep stuff cool in the case.

Cons: Fit is tight with 2 full length graphics card. Only 2 hard-drive quick fasteners.

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Buy it now!9/13/2012 12:15:37 AM

Pros: This is a very efficient power supply. It reduced my power consumption of my gaming rig from 355W (Antec earthwatts 80Plus PSU) to 325W. I measured it using P3 Killawatt. Great for reducing power consumption and noise, heat.

Cons: Only 2 PCIE connectors. Also it's not modular and there are limited numbers of 4pin molex.

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Good performance8/11/2012 3:05:48 AM

Pros: Good performance in games like BFBC2.

Cons: Fans get to 100% if the my computer case has the cover on. Had to reduce clock speed to 950MHz to make it stable 24x7.

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One fan died!8/11/2012 2:45:02 AM

Pros: The card is good. Overclocks easily to 1000MHz. the DD design dissipates heat well.

Cons: One of the fans died. The fan first slowed down and finally stopped spinning. This is totally not acceptable.

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Works well8/4/2012 1:46:17 PM

Pros: I usually wait 4 - 5 months for reviewing a PS. This PS works as advertised. It slashed 40w off my previous 650W 80 PLUS PS (as measured with P3 Kill a watt).

Cons: None

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