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StarTech.com Dual-Bay 2.5 to 3.5in Adapter Enclosure with SATA III and RAID

Mfg. Part: 35SAT225S3R | CDW Part: 4267041 | UNSPSC: 43201802
$74.99SAVE $21.00
$53.99Advertised Price

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  • Install two 2.5” SATA drives into a 3.5” drive bay and get increased performance or data redundancy with RAID
  • Dual-Bay 2.5” to 3.5” SATA Hard Drive Adapter Enclosure
  • 2-Bay adapter enclosure for cost-effective upgrades to legacy desktop PCs and servers
View More
Product Overview
Main Features
  • Install two 2.5” SATA drives into a 3.5” drive bay and get increased performance or data redundancy with RAID
  • Dual-Bay 2.5” to 3.5” SATA Hard Drive Adapter Enclosure
  • 2-Bay adapter enclosure for cost-effective upgrades to legacy desktop PCs and servers
  • Install two 2.5" SSDs/HDDs into a single internal or external 3.5" drive bay
  • Supports RAID 0 and RAID 1 plus Spanning and JBOD
  • Supports SATA I/II/III (up to 6 Gbps)
  • Durable aluminum housing
This unique dual-bay adapter enclosure gives you an easy and cost-effective way to upgrade legacy systems such as desktop PCs and servers, by letting you install two 2.5"" solid-state drives or hard drives into a single 3.5"" drive bay.

Upgrade your system performance

The adapter enclosure lets you install newer, higher performing drives such as SSDs into legacy systems that may only support 3.5” hard drives. The enclosure provides a cost-efficient way for companies and organizations to enhance storage performance and reliability without expensive upgrades to core IT systems. It's also ideal for system administrators and integrators who want to build a system or upgrade a system with limited SATA interfaces to take advantage of the increased drive performance of 2.5” SSDs or increased capacity with support for two drives.

The adapter enclosure allows you to install two 2.5"" SATA drives into an internal or external 3.5-inch bay, such as a drive drawer caddy or tray, or 3.5"" drive enclosure. To utilize the full speed potential of your SATA III hard drives, the drive converter supports SATA III for transfer speeds up to 6Gbps. Suitable for drives with a height of up to 9.5 mm, virtually any 2.5"" SATA drive can be made to look and function like a 3.5"" drive.

Enhanced performance and data redundancy with RAID

The adapter enclosure is equipped with hardware RAID to provide improved performance and data redundancy. The enclosure supports both RAID 0 and RAID 1 as well as Spanning, and JBOD, and lets you choose your preferred backup mode by simply adjusting the RAID setting switch.

The RAID 1 functionality is ideal in a hot-swapping server environment, providing a level of security and reliability to your data through data redundancy. With RAID 0 support, you can combine the storage capacity of the two hard drives and achieve faster read and write speeds.

Easy and flexible installation

You can install the adapter enclosure into a desktop PC or server. It offers flexible use in hot-swap bays or in a more fixed, permanent installation in a 3.5” hard-drive mounting bay with standard mounting holes. Once installed, you simply slide two 2.5” HDDs/SSDs into the adapter enclosure, with no tools required. The aluminum housing protects installed drives in a durable enclosure.

The 35SAT225S3R is backed by a StarTech.com 2-year warranty and free lifetime technical support.
Technical Specifications
Specifications are provided by the manufacturer. Refer to the manufacturer for an explanation of the print speed and other ratings.
Brand: StarTech.com
Compatibility: PC
Manufacturer: StarTech.com
Model: Dual-Bay 2.5 to 3.5in Adapter Enclosure with SATA III and RAID
Packaged Quantity: 1
Product Line: StarTech.com

Interface Provided
Connector Type: 22 pin Serial ATA
Interface (Storage): SATA 6Gb/s
Qty: 1

Bay Provided
Form Factor: 2.5" (in 3.5" carrier)
Free Qty: 2
Total Qty: 2

Dimensions & Weight
Depth: 5.7 in
Height: 1 in
Weight: 8.89 oz
Width: 4 in

Type: Hard drive array

Environmental Parameters
Humidity Range Operating: 5 - 65%
Max Operating Temperature: 131 °F
Min Operating Temperature: 32 °F

Color: Black , Silver
Color Category: Black , Silver
Compliant Standards: FCC , RoHS

Support Details Full Contract Period: 2 years
Support Details Type: Limited warranty

Storage Controller
Data Transfer Rate: 6 GBps
Interface Type: Serial ATA-600
RAID Level: BIG , JBOD , RAID 0 , RAID 1
Type: RAID

Storage Controller (2nd)
Type: None

Installed Devices Modules Qty: 0
Supported Devices Modules Qty: 2
Supported Interface: Serial ATA

Expansion Bays
Form Factor (metric): 6.4 cm (in 8.9 cm carrier)
Type: Internal

Hard Drive
Type: No HDD

Optical Storage
Type: None

Service & Support
Type: 2 years warranty

Product Reviews
StarTech.com Dual-Bay 2.5 to 3.5in Adapter Enclosure with SATA III and RAID is rated 4.2 out of 5 by 6.
Rated 2 out of 5 by from Flaky at Best Bought this with the expectation that it would be a seamless way to fit a raid array into a system. My expectations were not met though as the drive caused issues on startup. Windows 7 would want to do a startup repair consistently upon trying to start the computer. About 30% of the time it would make it into Windows without issues. To add to that, some of the screw holes weren't properly placed or tapped for use.
Date published: 2017-09-20
Rated 5 out of 5 by from Perfect for SSD's I like the idea of getting 2x240Gb SSD's into the one space my Mac Pro had remaining, to use as storage for Lightroom cache & catalog files. Once I loaded up the drive with 2 SSD's, I selected Raid0 (just wanted to stripe together for more capacity) by setting the slider found on the end of the product. The unit claims to be OS independent and when I plugged it into the mac, there was nothing else to do. Apple's Disk Utility recognized it as a single drive and there was no additional configuration to do to accommodate the raid functionality; it's all handled internally by the unit and no software was required.The unit was well made, came with screws and the mounting holes were in standard locations.I was provided this device for review purposes.
Date published: 2017-03-26
Rated 4 out of 5 by from So much in well though of product I have used this hard drive enclosure and it is working well for most of my needs. I have inserted 2.5" SATA disks from multiple manufactures and multiple size for testing.This enclosure is the same size as an internal 3.5" disk drive and styled to look similar. It is very light when there are no drives in it even though it is made of sturdy plastic and metal with built-in RAID controller. The end easily opens to be able to slide two 2.5" drives inside of it. The end that opens has a built in lever to eject the 2.5" drives and when closed the cover pushes the 2.5" drives into the connector. The other end with the connector has a small 4 position switch for changing the setup of the disk that are inserted. Coping files to the drive was very quick and seemed similar to if the drives were connected independently. The drive has 4 different modes to choose from for saving data to the two drives. 1) BIG: This just spans the data across several disks. Disk of any size can be used and the total available space is the total from both drives (250GB + 500GB = 750GB). If the drives are removed from the reader, the data which was stored on that disk is still available. If the drives are re-inserted in a different order, it doesn't seem to matter and all data is now available again. 2) RAID-1: This is essentially a mirror of the two drives to provide redundancy if one fails. If using different size drives, the size available is the total of the smallest disk (250GB + 500GB = 250GB). If I copy files to the disk in this setup, then remove and re-insert just one disk without the enclosure I am able to read all the data. This is the best option for protecting your files. 3) RAID-0: This is similar to BIG where you have a span of data across the disks. The difference is the total available space is the smallest drive x2 (250GB + 500GB = 500GB). Also, when the drives are removed the data is not available. If I put them back in the caddy in different places, the data was available. 4) JBOD: Just a Bunch Of Disks. Each disk connected should be displayed in the operating system as a separate disk of its own size. During my testing only the disk in the slot at the top of the enclosure would show up in the operating system. I didn't troubleshoot this much, but I figured if I were using this option, I would just connect the disk directly. So far, other than with the JBOD setting, I have not had any problems with this enclosure and it works well. I received this product in exchange for an unbiased review.
Date published: 2017-03-18
Rated 4 out of 5 by from Interesting Product Interesting product. It's something you wouldn't really imagine would work right but it does. All four modes (BIG, raid-1, raid-0, JBOD) worked flawlessly when tested on Windows 10. I'm currently running two SSDs in RAID-0 for a storage drive at the moment. If your mother board doesn't support Intel RAID then this is a cheap way to get RAID features in a budget machine.Pros: Works great, solid construction and materials.Cons: Having a difficult time finding a good use case for the product.I received this product in exchange for an unbiased review.
Date published: 2017-03-14
Rated 5 out of 5 by from WOW! Awesome item! Couldn't be happier What a great little product! I have been working with computers for years and this little item was perfect for a project I had. How to get 2 - 2.5 1tb drives into my old Mac Pro. This was perfect! For one thing because it has all the normal 3.5" holes it fits the carriers with ease (this is a problem for Older Mac pro users- we always have to buy expensive adapters) The enclosure gives you the options of Big, Raid 0 , Raid 1, or JOBD. So big is just that one large volume, Raid 0 is a striped raid for fast data access, Raid 1 is a mirrored raid(whats on drive one is on drive 2) and JOBD (just a bunch of drives). Now for my Mac Pro upgrade I used the Raid 0, I was looking for a use of 2 - 1tb 2.5" drives I had and wow..did this work great. put the drives in flip the switch to the appropriate spot and format in Disk Utility and it was ready to go. I decided to use that as a fast boot drive and it did not disappoint. I would love to try this one day with 2 SSD's to see the difference. All I can say is that this device is easy to use. Works as it should! The quality of the build is excellent and I could not be happier.“I received this product in exchange for an unbiased review.”
Date published: 2017-03-12
Rated 5 out of 5 by from Works Great! I had two spare 2.5" hard drives that I pulled from dead laptops and used this enclosure. I put the hard drives into the enclosure, put it into JBOD mode to make the two hard drives act as one big one and installed it into the computer with the supplied mounting screws. After hooking the enclosure up to appropriate ports, I turned the computer on. The Windows OS found the drives quickly and installed the necessary drivers. After I formatted the drives, they were ready to be used. Now I have more storage space on my computer. The enclosure is light but it seems to be made well and sturdy. The access speeds were good and as expected. The supplied mounting screws were a nice touch. The manual was straight forward but it does not mention what each mode does. IE JBOD, Raid 1, Raid 0. Overall, great unit that does what it's meant to do.I received this product in exchange for an unbiased review.
Date published: 2017-03-07
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12/16/2017 6:42:21 PM
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