WD Red Pro WD181KFGX 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Pros: I like the dependability and ease of support. They have many tips that make the product more fun to work with.

Overall Review: I have used WD products for many years and have told many others of my good experience. I will buy more WD products in the future.

Pros: - The drive handle a continuous streaming of at lest 100 MBs/s

Cons: Nothing found so far. I cannot comment for long term since I do have this HD for 2 weeks.

Overall Review: This drive was installed along with 3 other Western digital black hard disk in the TerraMaster enclosure connected throught an Ethernet cable directely to my computer. In total, the TerraMaster enclosure served 24 TBs of its maximum capacity of 64TBs. The download of a 2 TBs folder to the enclosure connecting this Western Digital pro HD run very smothly at a continuous speed above 100 MBs/s (1 GBaud) without stop. This enclosure with the WD RED Pro HD is part of an application which continuously save data from a very fast data acquisition system. A total of 9 TBs per week is saved in the HDs connected by the TerraMaster enclosure. So far, after 2 weeks (18TBs) the drives served the application beautifully. ,

Pros: - Fast, quiet, cool - 6 HDDs (4x these WD Red Pros and 2x WD Blue 1TB 7200rpm) + SSD in the back chamber of Fractal Design Node 804 so the space is pretty crammed, and monitoring shows drive temps in low to mid 30s even during a large transfer of data. - 256MB cache - so far, no issues (*knock on wood) for 4 of these I got. 4 of these in RAID10 with a budget RAID controller (Startech / Marvell), as I run another set of raid 0 drives on the same server and ran out of onboard SATA ports. 4x 4TB in RAID 10 game me ~7.25TB usable space...I think the budget Marvell RAID controller is limiting performance a tiny bit, but eitherway, through my 1Gbit network I can only do ~120MB/s transfers anyway... local SSD to the RAID10 array transfers anywhere between 350MB/s to 400MB/s depending on what I'm transferring.

Cons: - not the cheapest 4TB 7200rpm on the market? but that's about it... please last a long time and don't give me a reason to come back and add a con here

Overall Review: - I originally got Toshiba N300 4TB 7200rpm drives because they were $109 each at the time (vs $169 each for the WD Red Pro) which are "NAS grade" drives that are supposed to be reliable / dependable like the WD Reds are... but 3 out of 4 of the Toshiba units started getting bad sectors within 2 weeks of service 2 of which had over 400~500 bad sectors by the time I RMA'ed them.I since them got the WD Red Pros, and these have been rock solid for a little over 3 months or so now. Aside from the quality difference, the Toshibas ran pretty loud and clicky - maybe that was a sign from the getgo that those were bad drives.. and the toshiba drives ran a bit warmer too. so in my book, you do get what you pay for with the more expensive WD Reds.. - WD is the most reliable / dependable HDD I've used...

Pros: Out of two I bought, one came okay.

Cons: For a top of the line and premium prices NAS hard drives, it is NOT acceptable to have poor quality control. I saw many buyers' reviews with similar experience. The manufacturer responses to ask to contact them for a warranty process, it is not either acceptable. When you pay premium, you are expecting a premium quality product to avoid hassles.

Overall Review: I would recommend not to trust those big brand names and expect to get a premium product. Do your research and read buyers' reviews beforehand to avoid hassles. Definitely this WD PRO NAS drive shouldn't be called PRO because lack of high quality control standards expected for a premium product.

Pros: Quiet enough to not disappoint me.

Cons: Heavy

Overall Review: When choosing a new HDD to replace dying ST2000DM001, I mostly had two concerns: 1) noise; 2) manufacture date. As to the manufacture date, I was afraid that my future disk might be kind of not new or even refurbished. But it turned out to be really new. I ordered in the beginning of June 2020, and the label shows the date of April 07, 2020. So, really new. As to the noise, I also was not disappointed. Although it is considerably louder than my old ST2000DM001, but still quiet enough, and waaay more silent than my other disk Toshiba P300 HDWD130XZSTA (3TB), the latter being real drum-roll. To those worrying about the noise - keep in mind, that the noise produced by a HDD depends very much on the particular place where it is mounted. If it is noisy, try to move it to other bay or place. You even can put it on the very bottom of your case and place some rubber pillows under it. And not use metal screws but rubber strings. In my experience, upper bins/locations give less noise. It is a matter of acoustics.

Pros: 7200rpm extra vibration protection 5 year warranty

Cons: I just upgraded my Synology DS214Play NAS from two 2TB Western Digital Red Drives to two 8TB Western Digital Red Pro Drives. The new drives are definitely noisier than the old drives. I constantly hear a clunking sound every 5 to 10 seconds coming from the NAS when it is idle. I never had this problem with the old drives. I read on line reviews that said the Pros were noisier than the non Pro drives that is an understatement! I also feel some vibration when touching the NAS, never had that issue before.

Overall Review: I purchased these drives due to their robust specs and warranty. I would not recommend these drives for home use unless your NAS is in a separate room or closet. Purchase the Western Digital Red non-Pro drives instead. Keep in mind the read and write access time will be a little slower with the RED drives as they spin at 5400rpm. The Pros are good drives you just need to aware of their use case which is more enterprise oriented.

Overall Review: Great fast drive(s), no issues so far (used for ~2 weeks). Running in a Synology DS 918+ on Synology Hybrid Raid (SHR). I'm using two of these, and two (2) 12TB Seagate Ironwolf NAS drives for a total of 4 drives. Everything plays very nice. The bottle neck in my machine is definitely the LAN port capped at only 1 Gbps, which is no fault of the drives themselves.

Pros: Despite the noise it would read and write and if I let the drive idle for about 15 minutes it would hibernate and stop clicking.

Cons: Drive made loud clicking sounds in various patterns, it clicked while sitting in BIOS, it clicked when it was reading and writing, it even clicked when the data cable was disconnected.

Overall Review: I've exclusively used Western Digital for 20 years now and have only had one failure which I think was my fault, this was certainly a surprise, hopefully a shipping issue. I have recordings of the sound but they've all been rejected by Newegg so I can't upload them.