ICY DOCK
ToughArmor MB994SP-4SB-1 Full Metal 4 x 2.5" SAS/SATA HDD/SSD Hot-Swap Mobile Rack with Cooling Fan
Best storage solution for compact server and workstation builds.
Maximize your storage density with the ICY DOCK ToughArmor MB994SP-4SB-1. This robust mobile rack fits four 2.5-inch SATA drives into a single 5.25-inch bay, perfect for servers and compact systems. Its heavy-duty full metal construction ensures durability and efficient heat dissipation. Active Power Technology conserves energy by powering the unit only when drives are present. Enjoy easy drive access with the EZ Slide Mini Tray System and monitor status with clear LED indicators for power and activity.
$138.85
Owner Satisfaction
4.6
/ 5
Category Rank
49
/ 561
#49 in Hard Drive Enclosures & Mounts
Price vs Category Average
+39%
Above average
Number of Bays
4
Who it's for
- IT professionals needing flexible, high-speed drive management
- System builders maximizing storage in compact chassis designs
- Server administrators requiring durable, heat-dissipating hardware protection
Who should skip it
- Users sensitive to fan noise in quiet office environments
- PC builders struggling with limited space for cable management
- Budget-conscious hobbyists seeking affordable storage expansion solutions
Performance breakdown
Storage Density
Maximizes limited chassis space by packing four drives into one bay.
Build Durability
Full metal construction provides industrial-grade protection for sensitive internal hardware.
Thermal Management
Dual cooling fans effectively dissipate heat during high-intensity data operations.
Drive Accessibility
The tray system makes swapping drives quick and remarkably straightforward.
Power Efficiency
Active Power Technology intelligently manages energy consumption based on drive presence.
Installation Complexity
Requires basic technical knowledge for proper mounting and cable management.
Key Specs
Number of Bays
4
Material
Full Metal (SECC)
Power Source
Single 4 pin Molex connector
Cooling Method
Dual 40mm rear cooling fans with fan power switch
Mounting Type
Internal 5.25 Inch Bay
Max Data Transfer Speed
6 Gb/sec.
Hot-swappable
Yes
LED Indicator
Yes
Features
- Four 2.5" drives in one 5.25" bay
- Durable full metal construction
- Dual 40mm fans with power switch
- Active Power Technology saves energy
- EZ Slide Mini Tray for easy access
- Status LEDs for power and drive activity
- Supports SATA 6 Gbps speeds
- Reduces cable clutter
What customers say
Customers overwhelmingly praise the ICY DOCK ToughArmor MB994SP-4SB-1 for its exceptional build quality and reliability. The full metal construction ensures superior durability and excellent heat dissipation, making it ideal for demanding server and workstation environments. Users highly value the secure and consistently smooth hot swap functionality, which allows for seamless drive management without interruption. Its efficient design fits four 2.5 inch drives into one 5.25 inch bay, saving valuable space. While the unit carries a premium price, most users agree the robust performance and professional grade feel justify the investment, confirming its dependable nature.
Know before you buy
Yes, the ToughArmor MB994SP-4SB-1 is compatible with both 2.5-inch SATA HDDs and SSDs, provided they have a height of up to 15mm.
Yes, this unit supports hot-swapping, allowing you to remove or replace drives without powering down your system, provided your motherboard's SATA controller supports the AHCI mode.
The unit features dual 40mm rear fans to keep your drives cool during operation. You can manually toggle these fans on or off using the integrated power switch on the back of the device.
The device is powered by a single 4-pin Molex connector, which simplifies cable management by powering all four drive bays through one connection.
This rack is designed to fit into a standard, empty 5.25-inch external drive bay. It is a compact solution for users looking to maximize storage density in servers or desktop towers.
Active Power Technology is an energy-saving feature that ensures the unit only consumes power when a drive is physically inserted into a bay. This helps reduce unnecessary power draw when the bays are empty.
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Ready to buy?
$139