Dual 3.5in USB 3.0 Hot Swap Trayless SATA Hard Drive Enclosure w/ Fan

Connect Two Removable SATA Hard Drives through a Single USB 3.0 Connection

Product ID: SAT3520U3R

  • Trayless design: 3.5in drives are not mounted to a tray or the enclosure chassis/frame
  • SuperSpeed USB 3.0 compliant host interface, which supports transfer rates up to 5 Gbps
  • RAID support: 0, 1, BIG (Concatenation), JBOD
View More
  • Backward compatible with USB 2.0 systems, out of the box
  • 55mm cooling fan
  • Lockable drive doors
  • Power and Activity LED indicators
  • Plug-and-Play and Hot-Swap compatible
0,00 € EUR
VAT not included in the price
In stock with partners:
Where To Buy


The SAT3520U3R USB 3.0 to Dual 3.5-inch SATA Trayless Hard Drive Enclosure makes adding fast external storage easy, by turning any two 3.5-inch internal SATA hard drives into an external hard drive. Large capacity drives (tested with up to 4TB per bay) can be used to greatly enhance your computer's storage/backup capabilities.

The hard drive enclosure features a trayless system that eliminates having to mount and fasten the hard drive into the enclosure or tray, for quick and easy installation or removal.

Using the SuperSpeed USB 3.0 interface, which is up to 10 times faster than the previous USB 2.0, makes backing up and transferring large files faster than ever, while still being usable on older USB 2.0 systems. With built-in RAID capabilities (0, 1, BIG, JBOD), the two drives can be combined for speed, redundancy, capacity, or even left as separate drives, based on situation needs.

The Advantage

  • SuperSpeed USB 3.0 technology provides fast access for external storage, while still being backward compatible with USB 2.0
  • Quickly and easily install or remove hard drives from the enclosure with the innovative trayless design
  • Built-in support for RAID 0, 1, JBOD and Concatenation modes to suite most personal/business needs


Adding external storage that is easily transferable between different computer systems

Expand the storage capabilities of a small form factor/embedded system or laptop, with an external hard drive

Adding external storage capacity for video editing or photo editing stations, making it easier to work with very large file sizes

Creating additional backup/archive storage for IT professionals

Turning unused SATA hard drives into additional external data storage

Technical Specifications

Warranty Information
Warranty 2 Years
Chipset ID JMicron - JMS551
Compatible Drive Types SATA
Drive Installation Removable
Drive Size 3.5in
Fan(s) Yes
Fans 1 - 55 mm
Interface USB 3.0
Number of Drives 2
Insertion Rating 15, 000 cycles
Max Drive Capacity Currently tested with up to 4TB 5400 RPM hard drives per bay (8TB total)
Supported RAID Modes BIG (Spanning or Concatenation)
JBOD - (Just a Bunch of Disks)
RAID 0 (Striped Disks)
RAID 1 (Mirrored Disks)
Temperature Alarm No
Type and Rate USB 3.0 - 5 Gbit/s
SATA II (3 Gbps)
UASP Support No
Drive Connectors 2 - SATA Data & Power Combo (7+15 pin) Receptacle
Host Connectors 1 - USB Type-B (9 pin) USB 3.0 Female
OS Compatibility OS independent; No software or drivers required
Special Notes / Requirements
System and Cable Requirements Available USB port
LED Indicators 2 - Activity (blue)
2 - Power (blue)
Input Voltage 110V-240V AC
Output Current 3A
Output Voltage 12 DC
Power Source AC Adapter Included
Humidity 8% ~ 90% RH
Operating Temperature 5°C to 80°C (41°F to 176°F)
Storage Temperature -40°C to 70°C (-40°F to 158°F)
Physical Characteristics
Color Black
Enclosure Type Aluminum and Plastic
Product Height 135 mm [5.3 in]
Product Length 210 mm [8.3 in]
Product Weight 858 g [30.3 oz]
Product Width 76 mm [3 in]
Packaging Information
Package Quantity 1
Shipping (Package) Weight 1.5 kg [3.4 lb]
What's in the Box
Included in Package 1 - Hard Drive Enclosure
1 - USB 3.0 Cable
3 - Power Cord (NA/UK/EU)
1 - Universal Power Adapter
1 - Instruction Manual
Supports any operating system.
No additional drivers or software required.


Related Products

USB 3.0 to SATA Hard Drive Docking Station for 2.5/3.5 HDD
USB 3.0 to SATA Hard Drive Docking Station for 2.5/3.5 HDD

Enable fast, swappable access to your 2.5in or 3.5in SATA hard drives, through USB 3.0

56,99 €
508+ In stock