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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

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Learn more about the Vantec NST-640S3R-BK

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
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Customer Reviews of the Vantec NST-640S3R-BK

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  • David C.
  • 4/5/2015 6:21:33 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsbecoming unreliable

Pros: When working, its a very simple to use external hard drive bay that can combine drives into a single drive or you can cut up the drives inside to be anything you want (1x1tb and 3x750gb is an example).

The fan helps keep the hard drives cooler & the lights can be informative if your not logged into the computer on the daily.

Usb 3.0 & esata to help ensure maximum connectivity solutions for people.

Cons: I've had it for 14 months now (just about) and the unit has become a hassle to deal with.

Of course I originally thought that it was due to the fact the drives were old (i used this to JBOD raid some old 2 & 3tb drives into a single backup drive for my main server) however it wasn't until after swapping out drives that I knew were working and see similar failure results (the raid controller just goes offline) was when I realized that the enclosure itself was acting up.

I swapped out usb connections (as my mobo uses two different chipsets to run various usb 3.0 hosts) & I even put in a USB 3.0 card to see if that would work. Nope.

Other Thoughts: When working its a nifty piece of equipment. As i mentioned in the first paragraph, i use this to JBOD various older drives as a 2nd backup to my main server. This enclosure is always connect to a pc that I use an unlimited online cloud backup service so it gives me 3 copies of my data (2 local and 1 in the cloud).

Looks like I have to find a new enclosure, possibly one with a longer warranty.

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  • Michael A.
  • 4/5/2015 1:53:54 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year

2 out of 5 eggsGreat idea but poor execution

Pros: Multiple bays with large HD support
Active cooling
Pretty LEDs

Cons: Stupid thing will not stay connected. It's not even consistent on when it wants to be problematic. I've had it stay connected for several days with out issues and then i've had it cause hours to transfer a 700mb file because of the constant disconnects during. Seriously frustrating. This will probably be my last Vantec product. I've owned others and have been let down. Figured maybe i was the exception to the rule but it appears not.

If they could get their stuff sorted out, this enclosure could really be great but unfortunately it's a shiny paperweight at this point.

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  • Anonymous
  • 3/24/2015 12:15:31 PM
  • Tech Level: High
  • Ownership: more than 1 year

2 out of 5 eggs

Pros: worked fine to it died

Cons: died after owning it 1.5years. evidently a common issue. starts telling you a single drive has failed. replaced, week later claims same slot failed, replaced, happens again. now whole device disconnects from machine every 40min. not a good device if you are looking for longevity.

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  • Brian L.
  • 3/11/2015 11:48:25 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsMixed Feelings

Pros: Easy to install / swap drives
Easy to connect

Cons: Has issues staying connected to Windows. Have tested with many systems and on both Win 7 & 8.

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  • LARRY Z.
  • 1/11/2015 9:38:25 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

1 out of 5 eggsDoesn't rebuild raid 5

Pros: Kept my large movie .iso files stored for about 22 months. I was using 4 - 4TB drives in raid 5 in the HX4R. I had about 2 Terabytes of data stored on the enclosure.

Cons: In that I only ran this enclosure when I wanted to occasionally move/backup files from my PC data drives to the HX4R, this unit was only in use for maybe a total of about 50 hours; 75 max . After about 22 months of use, the enclosure indicated that 1 of the drives had failed. I bought a new drive (it matched the original drives and was formatted per the manual) and put it in. The HX4R indicated that it was rebuilding by the flashing lights, but it just ran and ran for hours without any indication in the JMicron HW Raid Manager that the rebuild was actually occurring (continued to indicate 0% rebuild). I tried another drive to rebuild the raid to, but this time after appearing to be rebuilding, the HX4R indicated that ANOTHER drive in the array had failed. Note that throughout this process to this point, my data had been available in "Degraded" (per JMicron Manager) status. Now windows was reporting that the drive was corrupted and it could not see the files. At this point, using another single disk enclosure, I tested all 4 drives that had been in the HX4R and the 2 spares: all functioned fine and could read/write data in the other enclosure. They passed full drive testing: albeit Windows Fixdisk tools, nothing more elaborate, but still. I want to say the controller is malfunctioning sporadically, but there are several issues of poor workmanship with this unit, so I cannot isolate the problem (read: worst case scenario for a raid enclosure that is suppose to redundantly backup your important data).

Other Thoughts: I am disturbed by the lack of quality & lack of engineering here. 1) One moment the controller sees the array, the next it doesn't - on drives that test good on other equipment 2) The fan seems inadequate and the drives get hot. Hotter than they should? Hard to say, but the way the drives are seated in the HX4R the little air flow created by the fan doesn't move between the individual drives as it should to properly ventilate. 3) The drives don't always feel like they seat tightly into the data/power connectors in the back of the enclosure when pushed into the unit. However, the same drive seats tightly / securely when put in different enclosure, so I don't feel it is the drive, but a problem with the enclosure.

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  • Jim 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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  • Anonymous
  • 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.

4 out of 5 people found this review helpful. Did you? Yes No

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]

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  • 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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