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Item#: N82E16817994143

ICY DOCK MB971SP-B DuoSwap 5.25" Hot-Swap Drive Caddy for 2.5" and 3.5" SATA HD/SSD

  • Color: Black
  • Host Connection: 7 pin SATA port x 2
  • Device Space: 5.25" half height device bay
  • Drive Fit:
  • 2.5" SATA HDD or SSD x 1
  • 3.5" SATA HDD or SSD x 1
  • Transfer Rate: Up to 6 Gbit/s. (dependi
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External docking stations are popular because of its flexibility and compatibility. However, because it is for external use, the interface limits the transfer speed of your hard drive while only allowing one to be use at a time. In a standard computer case, there are several 5.25" bays usually reserved for your DVD ROM drive, however, will not naturally fit with your 2.5" or 3.5" hard drives without some assistance. We also want to create a much faster and smoother transition from external to internal setups. Using the MB971SP-B DuoSwap, you will save precious desktop space by integrating both 3.5" & 2.5" slots into a single 5.25" bay. This gives you the ability to expand and easily go from your external docking station to your computer in just seconds.

Learn more about the ICY DOCK MB971SP-B




Mobile Rack Drives Support
2.5" & 3.5" Drives to 1 x 5.25" Bay
Mobile Rack Interface
Color: Black

Host Connection: 7 pin SATA port x 2

Device Space: 5.25" half height device bay

Drive Fit:
2.5" SATA HDD or SSD x 1
3.5" SATA HDD or SSD x 1

Transfer Rate: Up to 6 Gbit/s. (depending on hard drive speed)

Insert& Extract connection Via: Direct SATA hard drive connection

Structure: Metal body w/ partial plastic

Power Connector: 15pin SATA Power

Drive Cooling: Metal heat dispersion

Power Indicator: Solid Green LED

HDD Access Indicator: Flashing Amber LED

Dimension (L x W x H): 147.8 42 178.2mm

Weight: 621g


Connects up to one 2.5" & 3.5" SATA HDD in one 5.25" bay for a space saving setup.

Supports a single 2.5" HDD/SSD in 12.5mm height. (Up to 9.5mm while the 3.5" bay is in use)

Fast and simple tool-less drive installation.

Able to run 2.5" & 3.5" SATA hard drive or SSD Simultaneously.

Individual SATA 6Gbps connection for each hard drive or SSD.

2 part anti-dust cover protects system internals even when a small 2.5" SATA drive is used.

Anti vibration kit for the 3.5" drive bay to help reduce movement.

Eagle-Hook mechanism design added extra security to the 3.5" hard drive.

Individual LED for both 2.5" & 3.5" bays.

Easy access individual power buttons allows hard drive life expendability and energy conservation.

Large individual drive eject button for hassle free drive removal.

Perfect for any technical level of computer users.

Support SATA 3 6Gbps.

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the ICY DOCK MB971SP-B

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  • James T.
  • 1/8/2015 5:39:28 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsIcy Dock DuoSwap 3.5/2.5

Pros: I have two installed. The top one holds my 3.5 media drive and the lower one holds my OS SSD. The second one holds my two backup HDD/SSD. I have no internal SSD/HDD installed. I can power up what ever drive I want on or off. When video editing I pull out my backup HDD for my media drive and insert my render HDD. I have complet control over what I need to use. I am ready to order my third to have on hand just in case on goes bad and Icy Dock quites making them.

Cons: I found out that the 7mm SSD's will not eject for what ever reason. So that would cover Samsungs SSD and notebook size SSD's. But does eject SSD's from Crucial. For my use that doesn't present a problem because my OS SSD never comes out of the dock.

Other Thoughts: Over all I like this idea. Now I don't have to worry about power use and heat when only one drive is running. Although I have had all 4 bays going at once and no problems with heat. My 750 PSU has no problems with being under powered.

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  • Eric W.
  • 11/8/2014 2:14:12 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsWorks well - but design/build flaws.

Pros: Power switches for each drive, color changing led to indicate disk activity, solid frame. The speed of the drives not affected because it is a direct SATA connection (much faster than a USB drive).

Cons: The nut to the screw supporting the right side of the 2.5" drive mount bracket not attached; after the 2nd or 3rd mount I could not mount a 2.5" drive - had to take it out and dis-assemble the whole thing to fix it. Also - will not eject a slim 2.5" drive, you can still get your fingers on top of the drive to pull it out. Works fine on normal height 2.5" drives. The plastic flap is rather easy to unhinge - you have to be very careful and gentle or you will pop it off - happened to me but I was able to re-attach.

Other Thoughts: The frame is super solid, the connections are easy and long enough, once you get used to its idiosyncrasies it does exactly what it is supposed to. They should put thread lock on the nuts holding the drive mounts, and some metal for the door flap mount.

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  • James T.
  • 11/1/2014 7:02:46 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsIcy Dock MB971sp-b

Pros: Great for having more then one SSD or HDD.

Cons: None so far

Other Thoughts: I have two of these installed in my computer. What I like is I can have my OS SSD powered on and my other SSD or HDD's power off. I have my system set up for hot swap in BIOS. So if I need to power on a drive I just do. I am set up for video editing and I don't need my media HDD on all of the time. I also have the second SSD my backup drive off until I need it. They also work will with SATA 6 transfer rates. For me a must have and a good price.

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  • JAMES L.
  • 10/8/2014 6:59:22 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsLooks nice

Pros: Looks nice

Cons: Purchased in April and it died in Sept. Unit ejects poorly and hangs continuously. Internal connector for 2.5" is secured without lockwashers and comes loose from it's mounting, which is moot now because neither drive is recognized.

Other Thoughts: Too bad .... I could really use this.

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  • Ronald T.
  • 9/10/2014 10:52:19 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsICY DOCK MB971SP-B Hot-Swap Drive Cady for 2.5" & 3.5"

Pros: - Easy Install
- Allows Fast Change-out of 2.5" and 3.5" Drives without removing covers.

Cons: - 2.5" Bay Drive Eject Button Does Not Work for SSD's.
- Flakey SATA Connections to Drive on 25% of Units.
- Drive Bay Covers do not work with Drives Installed.

Other Thoughts: I have purchased and installed 5 of these ICY DOCK drive caddy's for use in servers that I have built. I like that I can do hot swaps (kind of) on 2.5" SSD's for OS development and also quickly change out 3.5" HDD's for off-site system backups. The convenience and ability to put two drives in one bay made the relatively high cost worth it IMO.

The problems with the drive eject bar not properly catching a 2.5" SSD which is around 7mm thick is well known. I run my OS on these SSD's and I don't change them out regularly so this has not been much of a problem for me. I know that I have to pull the exposed portion of the drive at the same time I push the eject button to get the drive to come out. A minor inconvenience.

The reason I gave the poor review was that I have had significant problems with the SATA connectors on the last two drive caddy's that I purchased. The problem mainly was with the 2.5" drive bay where the connection would be flakey on the 7 pin SATA connection that would drop the drive off-line and hence the server would crash. I was blaming this on the Samsung SSD and thought it was failing. After swapping out known good SSD's a couple times and getting the same failure, I finally disconnected the 7-pin SATA connector from the drive caddy and connected it directly to the SSD. No more problems after that. It was the drive caddy.

I had some problems with the 3.5" dock on another ICY Dock drive caddy that I recently purchased that was similar to the problem experienced with the 2.5" dock. I need reliable connections and high uptime for my servers. I no longer have confidence that the ICY DOCK drive caddy's are built well enough to provide that reliability.

I can no longer recommend these ICY DOCK drive caddy's for applications that require high reliability or where you are swapping out drives on a regular basis. I recommend that you seek out other options as I will be doing to replace the failing drive caddy's that I have.

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

  • James T.
  • 7/18/2014 6:06:38 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsICY DOCK MB971SP-B DuoSwap

Pros: Great add on for a 5.25 bay. I have been using this docking caddy for over a year and works great.

Cons: The only con I have found is the smaller 7mm SSD's will not eject when you push the eject button. The older and larger 2.5 SSD's will eject. Ended up using a long nose tool to pull out the 7mm SSD. This is the reason I only gave it 4 eggs. But if you install a 7mm SSD and plan on leaving it installed then these is no problem.

Other Thoughts: I have my system set up for normal work load using one of these duo docks. The second one is used for my video editing drives. Both use a SSD and a HDD. Because of my MB's lay out both SSD's are plugged into a SATA III ports, and the HDD's are plugged into a SATA II ports. The main advantage for me is the power needed to run the drives. I can turn off what I don't need at the time. Plus I don't have to get into my case to switch the drives around.
You also have to set your MB's BIOS to have all of the ports hot swap able, a must.

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  • Anonymous
  • 7/10/2014 11:00:01 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

5 out of 5 eggsSimple, durable, and super fast data transfers

Pros: Insert drive(s), power up and mount. Simple, easy and effective.

Cons: A suggestion to improve the design. If a drive is not present, do not allow the device(s) to be powered on.

Other Thoughts: Just what I was looking for... I was able to transfer copious amounts of data from both Linux and Windows sources quickly. What used to take me days, for example to transfer 1TB of data using a USB 2.0 device now only takes hours.

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  • Bill C.
  • 2/27/2014 9:02:46 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsRating decreasing

Pros: Makes drive swaps easy

Cons: Bought 6 - 2 RMA'd for broken doors

1 SATA Power connection broke off - I purchased a replacement giving the unit the benefit of the doubt

1 2.5 on/off switch just stopped working yesterday.

2 broken doors, a broken SATA power connection, and now a on/off switch, not good in my world.

Other Thoughts: MAYBE if 1 unit was made for SSD, and 1 for regular HDs, the simpler design would allow for better quality.

I have purchased my last one of these.

Newegg, as always, gives great service when selling and handling product problems.

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

  • Bill C.
  • 2/20/2014 8:10:41 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGood- but BE CAREFUL

Pros: They make changing drives a quick and easy operation

Cons: The thinner SSDs, I have 2 OCZ Vectors, don't always eject properly.
The piece where the power cable is attached has come off on 1 of the units I have, had to throw it away and order a replacement.

Other Thoughts: These are decent units but need to be engineered a little better. IMO they have to be handled with kid gloves when it come to inserting and ejecting drives, as well as attaching SATA cables.

I did buy 7, 1 as a replacement, so they are not the worst thing I ever used :-)

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  • Normand D.
  • 2/4/2014 12:50:07 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsbecoming obsolite with newer (thinner) ssd drive

Pros: Solid construction, does what it says, practical for multiple OS.

Cons: The ejector arm for the 2.5 hdd / ssd drive will just pass over the new (thinner 7mm) Samsung SSD 840 series. You will not be able to eject those drive.

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  • 2-4 $37.45 ea.
  • 5-9 $35.76 ea.
  • 10+ $33.35 ea.

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Item#: N82E16817994143
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