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Item#: N82E16817392056

VANTEC NexStar HX4R NST-640S3R-BK Aluminum / Plastic 3.5" Black SATA I/II/III USB3.0 & eSATA Quad Bay RAID HDD Enclosure

  • 3.5"
  • USB3.0 & eSATA
  • Aluminum / Plastic
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the Vantec NST-640S3R-BK


NexStar HX4R


AC Adapter
Aluminum / Plastic
Internal Interface
External Interface
USB3.0 & eSATA
80 mm
Aluminum Casing Cools Down Your Hard Drive

Vents To Intake Cool Air

Maximum Transfer Rates Up to 5 Gbps w/USB 3.0

Maximum Transfer Rates Up to 3Gbps w/eSATA

Large 80mm Fan w/ On & Off Switch

Easily Add Storage to Any System with USB 2.0, 3.0 or eSATA

Backwards-Compatible with USB 2.0 or 1.1

Hot-Swappable: Plug & Play Without Rebooting

Attractive LED Indicates Power & HDD Activity

Supports Individual, JBOD, RAID 0, 1, 3, 5, & 10 Modes


Operating Systems Supported
Microsoft Windows XP, Vista & 7
Mac OS X v10.4 and Up

Dimensions & Weight

8.23" x 6.7" x 7.13"


Package Contents
NexStar HX4R Enclosure, Power Adapter, USB 3.0 Cable, eSATA Cable, User's Manual

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Vantec NST-640S3R-BK

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  • James H.
  • 12/9/2014 9:16:56 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsNexStar HX4R RAID HDD Enclosure

Pros: The chassis assembled easily and the disks are easy to load and unload, and drives spin up sequentially. All drives stay reasonably cool. I have an older 2-disk VANTEC enclosure which is bullet-proof, so this brand was my first choice.

Cons: The fan is pitiful. It started making noise after a week, and the bearings were screaming within another week. You can get to the fan by twisting the 5" round grill piece on top counterclockwise. Inside is an über thin 80mm fan with the cheapest of bearings.

If I had sent it back, I would have gotten a replacement with the same fan, so I replaced it with a thin Silenx quiet fan I had laying around. Since the enclosure uses a tiny 2-pin connector to their circuit board, I had to splice the cables, which of course voids the warranty. Oh well, now I have a quiet fan which should last for a few years. I needed to dig out slightly longer screws.

Note: The new fan is a few mm thicker than the original, so the grill piece doesn't lock in place.

Other Thoughts: VANTEC should replace the junker fan they use with one using much better bearings, even if it means missing their price point by a couple of dollars.

I can't speak to the RAID capabilities or performance. I use the disks individually .

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  • Kimberly D.
  • 10/27/2014 4:56:00 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs24/7 Operation without issue

Pros: Super easy setup. Work's flawless with Nighthawk AC1900 wireless share. Running always on config with personal web service for ftp. Fan speed adjustable, Again easy setup- my setup: 4 wd enterprise 3tb drives - raid 10 - fan keeps it nice and cool.

Cons: none

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  • Ronald T.
  • 10/6/2014 9:11:13 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsVantec NexStar HX4R Enclosure

Pros: - Inexpensive for a 4-Bay Enclosure.
- Came Highly Recommended.
- SATA III buss.
- Takes 4TB HDD's.
- USB 3.0 Interface.
- RAID 0,1,5,10 capable
- JBOD capable
- Discrete Drive capable.
- Active Cooling System (Fan)
- Excellent Tech Support.

Cons: - Fan is Cheaply Built.
- Noisy Fan.
- Drops Connection to Server.

Other Thoughts: I spent quite a bit of time trying to decide How to rate this Vantec NexStar Enclosure. The price for the capabilities is certainly very good. Unfortunately, there are some flaws that keep me from recommending this enclosure.

This enclosure has a lot of nice features for the money. The case is well built. Populating the enclosure is very simple. All the parts come with the enclosure (the screws are taped to the box where the power supply cord is). While the software is very simple, it does work - Though I did have to format the HDD using Windows to get them to be recognized. The fan speed is adjustable for your preferences to keep the noise down and accommodate different numbers of drives. There are a lot of options for drive configuration. All of these features make for a great price/value story.

The downsides of this enclosure are that some of the components are low quality.

The first is the fan. Initial startup of the enclosure indicated to me that it was a low-noise unit. Within 24 hours, the fan noise became very loud and grinding like imminent bearing failure. By day 2, I had to turn off the fan for fear that it would fail and cause a HDD crash. Before sending the unit back to Newegg and having to pay shipping, I decided to contact Vantec to see what they could do. Wonder of Wonders, I actually got hold of a Live Person (Alvin) without a phone que. He told me that the fan blades often came loose during shipping and gave me the procedure to press the fan blades back on to the shaft (turn the unit off and unplug, remove the top HDD, put your hand into the case and push up against the center hub of the fan blade while pressing down on the top center of the enclosure). It worked!!! No more noisy fan. My concern is how long this fan is going to last given how poorly built it is. I deducted an egg for this.

The other problem is that the enclosure keeps dropping connection to the server/client/workstation. The connection does come back but if data is being read/written during the disconnect, it can fail to read/write or the data can be corrupted. This is a Major Problem for mission critical applications! Other reviewers have said they had to replace the USB 3.0 cable. I tried that but it did nothing for the disconnect problem. I will try again with another "known good" USB 3.0 cable but I am not optimistic. I deducted an egg for that too. I debated taking two eggs off for this because it would really mess up a RAID array.

The fan and dropped connections are a definite detractor from a otherwise good performing enclosure. If Vantec resolved these issues, I would highly recommend this enclosure. As it is, if you need high reliability, You should probably go to a different supplier.

1 out of 2 people found this review helpful. Did you? Yes No

  • Valentin P.
  • 8/21/2014 1:59:44 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsGreat unit!

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]

1 out of 1 people found this review helpful. Did you? Yes No

  • Edward L.
  • 8/10/2014 4:37:59 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Device for the Price

Pros: Quiet, nice look and features to set different RAID types. I am using 4 3TB WD red drives in a RAID 5. I have between 2-3 TB of movies, etc., I wanted to save. This allowed me to do that and provide room for growth if needed.

Cons: Wish the drive adapters were brushed aluminum like chassis, and the need for the more expensive NAS hard drives if you want to set up a RAID array (the drives aren't a requirement, but after a little research, regular desktop internal drives would probably drop unnecessarily from the array for errors on the drive and trigger a rebuild. If more than one dropped at a time, you lose the data.

Other Thoughts: Either buy your drives the same time as this or buy them first (if not already on hand). I didn't and had to wait for them to arrive to even turn on the device to see if it worked.

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  • Marc D.
  • 7/31/2014 5:28:40 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorked perfectly, looks amazing!

Pros: I've gone through a number of HDD enclosures like this, mainly from Sans Digital. I kept having to replace them because the power supplies would burn out not long after the warranty expired. For the cost of having a replacement power supply shipped to me and the time to swap it out, it ends up being faster to order a new enclosure. I went with this one because my needs are pretty basic (JBOD configuration attached to a WHS 2011 server). The setup was a snap, I just swapped the drives into the enclosure, plugged in the eSATA and power cables, and it worked without a hitch. Some have commented that the fan is loud, but that doesn't match my experience. I couldn't hear the fan at all. I've got four 2TB drives in it currently, two WD Green, a Seagate, and a Samsung. All of them are working great and the transfer speeds are what you'd expect for eSATA (100MB/s). So far, it's performed swimmingly and the design is one of the more attractive I've seen for this type of device. Oh, and look closely in the box if you don't spot the screws for the HDDs. Someone reviewed one of these saying it did not come with them, but mine had them in a small baggie that was taped to the inside of the box. You'll only need eight of them (2 per drive), but my bag had nine in it. The drives are loaded into end covers that screw onto the drive on the sides, ensuring they seat perfectly upon insertion, then lock in place with a sliding plastic switch. It's a nifty design that ensures swapping out a drive is a pretty easy thing to do. As I said, I've not had much luck with HDD enclosures in the past, but if this one holds up for awhile , I'd definitely purchase another as a replacement. As for the LEDs on the front, you have a green power LED at the top, and four blue LEDs that represent the hard drives, aligned vertically down the center. All the lights are the same intensity, which is not too bright to be offensive in a home theater environment, nor so dim that you're unable to see drive activity that might be taking place.

Cons: I personally have had zero issues, but according to some other reviewers, there can be problems with things like loud fans and loose USB connections creating annoyance and performance problems. Hopefully those problems are rare, because I can tell you in all honesty, I'm extremely pleased with mine! If it holds up for a good length of time, you just can't beat what you get for the price.

Other Thoughts: I'd take a chance on this one. The design is a thing of beauty that needs to be witnessed firsthand, and if you do get a dud, at least you bought it from Newegg, so returning it shouldn't be any problem whatsoever.

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  • Anonymous
  • 7/30/2014 3:41:12 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsGarbage

Pros: Cheap!

Cons: Runs extremely hot that your drives will start to fail.

Other Thoughts: Don't waste your time with these. Absolute garbage! Cooling is horrible and it will kill your drives. Newegg gave me no fuss about the return.

0 out of 3 people found this review helpful. Did you? Yes No

  • Anthony S.
  • 7/27/2014 9:43:29 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsTerrible Fan!!!

Pros: RAID, JBOD, USB3.0, and eSATA.

Cons: 80mm cooling fan noise and questionable speeds over USB/eSATA.

Other Thoughts: I love it. It looks great and does exactly what I needed it to do although I rarely average more than 45-75MB/sec over any of the included channels. However, from time to time, I get this "bearing" type noise from the cooling fan. It doesn't matter how fast it's running (slow or full)... The noise varies but is always there. A soft tap will usually stop it, but who wants to do that with a box containing HDD's that have numbers files that you are trying to back up? Fix the fan people! I would hate if this fan fails allowing my drives to die early!

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  • Kimberly D.
  • 7/20/2014 1:17:06 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat NAS - Good Price - Fast Performance

Pros: Very easy to set up. Runs RAID 10 without any hick-ups. I'm using 4 - 3TB without issues. Setup in Windows , plugged into my 3.0USB port on my R7000 Nighthawk, works flawless as media NAS, nice to manually control the fan speed too.

Cons: None

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  • andrew l.
  • 6/20/2014 8:38:42 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsLove it so far.

Pros: Easy to use. Easy to install drives and set up. Fan operates well and keeps drives cool at maximum use.

Cons: Sorta loud. But for the function and the price, it's not so bad. Software is crude, but gets the job done. Dip switches serve no purpose what so ever. Raid config must be set up via software.

Other Thoughts: I've had this unit for about 6 weeks now. I love this little thing. It gets the job done.
Shipping was ridiculously awesome. I ordered at like 2pm and got it the next day. Props to new egg for being on their game with processing orders.

Out of the box, the construction and design of the box is cool. The aluminum exterior gives it a strong feel. The drives are super easy to install. The fan works well, and it's nice to have the fan speed potentiometer on it too. The drives are always cool. The case design was well thought out, as far as cooling was concerned.

The software is crude, and annoying at times. Often at times you load the software and it says no Raid found, which is annoying. I also found that the dip switch on the side to set the Raid config is useless. You need to set the config up in the software. Minor thing, maybe, but I'm confused why they would put them there if they don't do anything. To make it look cool I guess? I don't know.

All in all, I think i'll be ordering another one of these. The functionality you get for the price is unbeatable. Great experience so far. I use it for my photography business to back up my working set of photos. So i'm constantly using this and pulling data from it. Works great for my needs. Happy customer.

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Item#: N82E16817392056
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