4 Bay Aluminum Trayless Hot Swap Mobile Rack Backplane for 3.5in SAS II/SATA III - 6 Gbps HDD

Connect and hot swap four 3.5in SATA III or SAS II hard drives to your computer system in three 5.25” bays, with support for transfer speeds up to 6 Gbps


5 stars (1 reviews) |
  • Solid aluminum construction
  • Key lock design
  • Built-in fan
Your price
$267.99 NZD excl. GST
$308.19 NZD incl. GST

The HSB4SATSASBA Removable 4-drive Backplane makes inserting and removing drives fast and easy, by turning three 5.25" bays into a hot-swappable interface for up to four 3.5” SATA or SAS hard drives (HDD).

For added versatility, the hot swap bay can interface with SATA I/II/III and SAS I/II hard drives -- an ideal solution for enterprise system applications.

For a quick and secure method of installing and removing drives, the backplane features ejection levers and a key-lock design. To help prevent drive failure, the bay provides drive cooling with a built-in fan and excellent heat dissipation with a vented aluminum enclosure.

The HSB4SATSASBA is backed by a StarTech.com 2-year warranty and free lifetime technical support.


  • IT environments where you need to quickly insert/replace hard drives with no external HDD enclosure required
  • Add a hot-swap bay to a server or workstation computer that you can use as a removable backup solution
  • Imaging - for new system builds or configurations, use the hot swap bay in your master system to quickly copy the Windows OS to multiple blank hard drives
  • Onsite data backup as a secure alternative to cloud storage

The StarTech.com Advantage

  • Delivers peak drive performance, with support for full SATA III/SAS II data transfer speeds up to 6Gbps
  • Flexible drive options with support for both SATA and SAS drive interfaces
  • Helps maintain ideal drive operating temperatures by maximizing heat dissipation and expelling built-up heat, with a vented aluminum housing and built-in fan

Partner Numbers

  • Ingram Micro New Zealand 2784044
  • UPC 065030859547


  • OS Independent logo
OS independent; No software or drivers required


Warranty Information Warranty 2 Years
Connector(s) Drive Connectors 4 - SFF-8482 (29 pin, Data & Power, Internal SAS)
Host Connectors 2 - SATA Power (15 pin)
4 - SATA (7 pin, Data)
Environmental Operating Temperature 0°C to 55°C (23°F to 95°F)
Storage Temperature -20°C to 60°C (-4°F to 122°F)
Humidity 5%~85% RH
Hardware Interface SATA
Front Door Key Lock Yes
Number of Drives 4
Drive Size 3.5in
Compatible Drive Types SAS & SATA
Drive Installation Removable
Number of internal 3.5 inch bays 4
Fan(s) Yes
Fans 1 - 70 mm
Fan Bearing Type Sleeve Bearing
Indicators LED Indicators 1 - Power LED
1 - Drive 1 Activity LED
1 - Drive 2 Activity LED
1 - Drive 3 Activity LED
1 - Drive 4 Activity LED
Packaging Information Package Height 7.1 in [180 mm]
Package Length 6.5 in [16.4 cm]
Shipping (Package) Weight 3.5 lb [1.6 kg]
Package Width 10.0 in [25.4 cm]
Performance Maximum Data Transfer Rate 6 Gbit/s
Max Drive Capacity Currently tested with up to 6TB 7200 RPM hard drives
Physical Characteristics Weight of Product 45.1 oz [1278 g]
Product Length 7.8 in [19.7 cm]
Product Width 5.7 in [146 mm]
Product Height 5.0 in [12.6 cm]
Software OS Compatibility OS independent; No software or drivers required
Special Notes / Requirements System and Cable Requirements Flammability rating: UL94 - V0
What's in the Box Included in Package 1 - 4 Drive Trayless 3.5in SATA/SAS Mobile Rack
8 - Installation screws
2 - Drive bay keys
4 - SATA cables
1 - Instruction manual



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Product Support

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Frequently Asked Questions


Yes, this mobile rack does support hot-swapping of SATA drives. To use this feature, it is required that the SATA port is set to Advanced Host Controller Interface (AHCI) mode and hot-swapping is enabled. On most motherboards, this is performed within the Basic Input/Output System (BIOS) or the Unified Extensible Firmware Interface (UEFI). If you are using a SATA controller card, consult the motherboard manufacturer's technical documentation for the correct steps to accomplish this.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

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(5 Stars)

Physically Satisfactory

By: listener1379 - 04/26/2020
Nice enclosure. Very convenient and feels quality. Only wish it had MiniSAS.
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