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My Book Duo 4TB dual-drive, USB3.0  high-speed premium RAID storage Model WDBLWE0040JCH-NESN
  • eggxpert iconEggXpert
  • Owned For: 1 week to 1 month

Pros: Nice slick design, small because only 2x drive enclosure
Great USB3.0 speeds
Decent software options
Soft LED lights
Setup pretty simple and straight forward

Benchmarks CrystalDiskMark

Vantec HX4R Raid 10

Sequential Read : 93.265 MB/s
Sequential Write : 131.252 MB/s
Random Read 512KB : 43.628 MB/s
Random Write 512KB : 31.146 MB/s
Random Read 4KB (QD=1) : 0.530 MB/s [ 129.5 IOPS]
Random Write 4KB (QD=1) : 0.812 MB/s [ 198.3 IOPS]
Random Read 4KB (QD=32) : 0.564 MB/s [ 137.7 IOPS]
Random Write 4KB (QD=32) : 0.892 MB/s [ 217.7 IOPS]

My Book Duo Raid 0

Sequential Read : 244.680 MB/s
Sequential Write : 206.392 MB/s
Random Read 512KB : 45.167 MB/s
Random Write 512KB : 31.514 MB/s
Random Read 4KB (QD=1) : 0.472 MB/s [ 115.2 IOPS]
Random Write 4KB (QD=1) : 0.317 MB/s [ 77.4 IOPS]
Random Read 4KB (QD=32) : 0.501 MB/s [ 122.3 IOPS]
Random Write 4KB (QD=32) : 0.320 MB/s [ 78.2 IOPS]

My Book Duo Raid 1

Sequential Read : 149.349 MB/s
Sequential Write : 145.717 MB/s
Random Read 512KB : 28.858 MB/s
Random Write 512KB : 79.527 MB/s
Random Read 4KB (QD=1) : 0.579 MB/s [ 141.4 IOPS]
Random Write 4KB (QD=1) : 1.410 MB/s [ 344.3 IOPS]
Random Read 4KB (QD=32) : 0.589 MB/s [ 143.7 IOPS]
Random Write 4KB (QD=32) : 1.364 MB/s [ 333.1 IOPS]

Cons: Setup comes with 2x 2TB drives stating 4TB storage, which is setup in Raid 0, with no redundancy
Supposedly there is a fan? The unit gets pretty warm during regular benchmarking, the fan should kick in a bit, but never saw it on. (maybe can be addressed through firmware update?)
Had major issues with Windows 8.0 x64 would BSOD on USB3.0 port
once upgraded to windows 8.1 USB3.0 port worked fine on my ASUS crosshair V Formula-z With this My Book Duo

Other Thoughts: First impressions was how nice the look of the device was its pretty well designed, the passive air flow is good just by looking at it, as you can see through top to bottom, while testing the device would give off heat and you can feel it flow through it, without even the fan engaging. I dislike the wall adaptors I would prefer a wired adaptor like laptops and other devices have, that gives you the freedom in tight spaces. The utility is nice and slick but is designed for the avg home user, and the lack for advanced options showing more raw data about the controller and the physical drives is a minus in my book. (unless I missed some tab or setting).

This unit compared to my Vantec NexStar HX4R is nice as far as design for the air flow, but of course we are talking about 2x vs 4x enclosure that give way more raid options and a dedicated 80mm fan with manual speed control. Price wise the Vantec has the My Book Duo beat considering what you get with the NexStar, if you do the math of the cost of the 2TB red drives. This is why I believe WD should have had a much lower price since they are using their own drives and can save more with preinstalled units in this enclosure.

The WD My Book Duo should not come with Raid 0 preinstalled, I will bet the average user will think that Raid 0 might give them redundancy which it does not, in fact gives 2x the risk. Personally I will be running this unit with Raid 1, the performance is still good in my book, and the size of the unit makes it very convenient for moving around along with weight (2x drives vs 4x).

My Vantec HX4R configured in Raid 10 with 4x old but trusty Seagate Barracuda 7200.10 ST3320620AS 320GB 7200 16MB cache drives, did decent in comparison, to WD My Book Duo in Raid 1, of course Raid 0, lost in the speed. Overall I think this unit gets 3.7 to 3.9 out of 5, the bottom line is it could have been better (fan control, and utility advance settings) and for a little lower in price.

VANTEC NexStar HX4R NST-640S3R-BK Aluminum / Plastic 3.5
  • Verified Owner
  • Owned For: more than 1 year

Pros: 4x configuration lots of Raid options
Fan can be controlled!

Cons: The 80mm fan is not the best as far as noise
on full blast its louder then my 120 and 140mm fans (idle) in my case that are load driven

Other Thoughts: So, had this unit for a while in RAID 10, with old but proven drives.

The drivers are few old ones that I was not using anymore for a few years, and had about 5 of them, so this was perfect to create RAID10 and have good portable backup system (bought about 1 year ago)

Seagate Barracuda 7200.10 ST3320620AS 320GB 7200 16MB cache

Esata was maxed at 100MB/s I believe, which USB3.0 gave better results as you can see, my results are due to old drives but still good

strange how my writes are better, which is perfect since most time I am backing up and writing stuff.

The design is not optimal for flow. Top bottom air setup is not good for drives that are right in the path of the flow, if the drives were sideways then maybe it would work fine top bottom, but not sure if life of HD's is less if they are designed to be in used in flat setup. Desktop towers have best flow design from the front intake fans.

They could have went with a left right approach, possibly dual low profile 80mm one on top one on bottom creating a flow of left to right (horizontal one) and having vents on opposite side along on top

The air would at least go through and between the drives extracting the heat.

Big plus is the info at the software side especially the advanced settings.

For this price I would give this unit 3.5-3.9 out of 5

Crystal DiskMark results of 10 Raid:

4x Seagate Barracuda 7200.10 ST3320620AS 320GB 7200 16MB cache

CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World :
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 93.265 MB/s
Sequential Write : 131.252 MB/s
Random Read 512KB : 43.628 MB/s
Random Write 512KB : 31.146 MB/s
Random Read 4KB (QD=1) : 0.530 MB/s [ 129.5 IOPS]
Random Write 4KB (QD=1) : 0.812 MB/s [ 198.3 IOPS]
Random Read 4KB (QD=32) : 0.564 MB/s [ 137.7 IOPS]
Random Write 4KB (QD=32) : 0.892 MB/s [ 217.7 IOPS]

Rosewill RMS-MT2790 Black 13
  • Verified Owner
  • Owned For: more than 1 year

Pros: Bought them when the price was really low
Construction wise they are good

Cons: none really, maybe not work past 24-27"
I would recommend these for light to medium weight monitors,

I cant speak for the wall mounts as I did not use that section.

Other Thoughts: I bought these for different project then mounting them on wall, it was to hold 2x 24 inch monitors, I machined and designed a adaptor that would mount to the standard musical racks 1.5" tubing and these mounds replaced the wall part.

So far they have been able to hold the monitors really nice. They could be a little bit more sturdy but if you do not mess with them too much they hold good.

I got them for 2/3 of current price, I wish they were that price I want to buy 2 more and get ride of my monitors stand, and use the 1.5" tubing and mount it under the hutch of my desk so I can have all that space for paperwork!


Valentin P.'s Profile

Display Name: Valentin P.

Date Joined: 05/15/03

  • Reviews: 8
  • Helpfulness: 3
  • First Review: 10/16/13
  • Last Review: 07/31/14
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