Sans Digital TowerRAID 4 Bay eSATA RAID 0/1/10/5/JBOD Performance Tower w/ 6G PCIe Card


SKU: TR4M+ Category:


Product Overview

The TowerRAID TR4M+ is a compact RAID tower utilizing the latest SATA II port multiplier technology, where one single eSATA cable connects to four 3Gbps SATA II hard drives. Bundled with a high performance RAID controller card RR622, its RAID 5 performance is capable of reaching over 200MB/s. Online expansion is a feature included in the controller card so that RAID could be expanded without the need to recreate the storage space or erase the existing data. Advanced monitoring functions include real time hard drives health status and e-mail notification for critical events. Designed with easy installation in mind, the trayless TR4M+B allows instant setup by simply inserting the hard drives after opening the protective ventilating cover. The included dual-port eSATA 6Gb/s PCIe 2.0 x1 RAID controller card allows the connection of up to two TR4M+B units (up to 8 hard drives) using only two cables, while all drives could be configured into a single or multiple RAID arrays, providing over 200MB/s in performance.

The use of enterprise hard drives are recommentded when in use with any RAID controller applications. Standard desktop or green desktop drive may not be supported and may compromise RAID system stability and performance.


  • Bundled with RR622 RAID controller card for over 200MB/s RAID 5 performance.
  • Dual-port eSATA 6Gb/s PCIe 2.0 x1 RAID controller supports up to 2 units or 8 hard drives in a single or multiple RAID array.
  • Backward compatible with PCIe 1.0.
  • Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD.
  • Supports online expansion to expand capacity without the need to recreate the RAID volume and erase the existing data.
  • Built-in real time hard drive health monitoring and e-mail notification for critical events.
  • Supports PC, Linux and MAC OS, including Windows 7, Windows Server 2008 and Snow Leopard.
  • Accesses four hard drives using only one cable.
  • Host interface: eSATA with Port Multiplier.
  • Drive interface: 4 x 3.5″ SATA I / SATA II.
  • Default in silver color (alternative color in black)


  • RAID Level: RAID 0, 1, 10, 5, 5+spare, Spanning and JBOD  (via Bundled RR622 RAID Controller Card) 
  • Maximum Capacity: 12TB Raw
  • Host Interface & Transfer Rate: eSATA (via Port Multiplier) PCIe 2.0 x1 for RR622 RAID Controller 
  • Cooling Fan: 3.15″ Ball Bearing Fan
  • Safety Regulations: CE, FCC, UL, RoHS
  • Package contents: 1 x TR4M+, 1 x power cord, 1 x eSATA cable, 1 x RR622 dual-port eSATA 6Gb/s PCIe x 1 2.0 RAID controller, 1 set x screws, 1 x quick installation manual & CD


Additional information

Weight 15.00 lbs

Form Factor

Compact Tower

Power Supply

150W (115V – 230V Switchable)


5.3"W x 7.1"H x 10.0"D

Front Panel LED

Power LED and 4 * Access LEDs

External Bay

4 Hot-Swappable 3.5"

Hard Drive

4 x 3.5” SATA I / SATA II