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***Please Note: It is required that the Unit be connected to a Port Multiplier compatible eSATA Host Controller for the System to see all drives. It is assumed that the driver for the eSATA Host Cotroller is correctly installed.***

Mini Storage Tower (black) with one 5-port eSATA HPM-XA Enclosure Version (AD5HPMRXA-E) - Connects up to 4 drives to system via an eSATA port of any SATA controller port. Includes power cord, 4 4P-15 pins SATA power connectors (AA4PSAPC), 4 SATA data cables (AASAIDC18I) and user guide.

Applying the innovative storage design concept from the original Storage Tower, the Mini Storage Tower features increased portability, almost half the size and weight of it's predecessor. The Mini Storage Tower stores up to 4 standard 3 1/2" or 4 2.5" Mobile Racks, and comes with a low noise cooling fan and stylish design with swing open front panel for easy drive access. Similar to the Storage Tower, all the hard drives inside can be connected to computer via a single USB, eSATA, Multilane cable or 4 eSATA cable with a choice of different back panel configurations.
Using the back panel with eSATA or the latest SATA Multilane connectors, you can build yourself a high performance (up to 3 Gbits/sec using SATA II) external storage system or a terabyte storage farm, and connect it up to 6 feet away from the computer system! Any SATA hard drives inside the Mini Storage Tower can be easily converted into eSATA (the latest external SATA standard). Each drive can be connected directly to a eSATA host controller for maximum throughput in any system. For better cable management, multiple SATA hard drives inside the Mini Storage Tower can be connected to system via one cable using a Port Multiplier or a SATA Multilane bridge model MST4ML.

The Mini Storage Tower with a built-in Hardware Port Multiplier (HPM) is an ideal external RAID storage solution for sharing with different computers. Once the HPM is configured, the entire RAID set can be attached an eSATA port or USB port of any system. Click here for a Port Multiplier Tutorial

Need to connect Terabytes external storage or multiple drives to your system via the convenience and speed of the USB 2.0? The Mini Storage Tower with the but-in JBOD USB adapter is the perfect answer. You can connect up to 4 IDE hard drives (or SATA hard drives using the Addonics SATA-IDE converter) inside the Mini Storage Tower to your system with one single USB cable. The 4 drives can be set up to appear to your system as 1 large drive, 2 drives or as 4 individual drives.


    • Great for variety of storage applications - external RAID storage, Video storage, Server storage
    • 4 standard 3 1/2" drive bays with build-in mounting brackets
    • Available in Acrylic white and Acrylic black
    • Back panels with the following connection choices or a combination:
      • 5x1 eSATA Hardware Port Multiplier-XA Enclosure Version (AD5HPMRXA-E) to connect up to 4 SATA/SATA II hard drives  to computer via any eSATA port. Can be configured as RAID 1, 0, 10, 5, 3, BIG, or Clone mode. (RAID setting is configured through onboard jumpers or included Windows software)
      • 4x1 eSATA/USB Hardware Port Multiplier (AD4SR5HPMU-E) to connect up to 4 SATA/SATA II hard drives  to computer via any eSATA or USB port. Can be configured as RAID 1, 0, 10, 5, 5+S, BIG2 or BIG4 (RAID setting is configured through an onboard rotary switch, no software is needed)
      • 5x1 eSATA Hardware Port Multiplier (AD5SAHPM-EA) to connect up to 5 SATA/SATA II hard drives  to computer via any eSATA port or with USB 2.0 port (requires optional eSATA to USB 2.0 adapter, AAU2ESA). Can be configured as RAID 1, 0, 1+0, JBOD or as individual drives**. (requires a PM compatible SATA controller for the initial RAID configuration)
      • 5X1 eSATA Port Multiplier (AD5SARPM-E) to connect up to 4 SATA/SATA II hard drives  to computer as via 1 eSATA port (requires a PM compatible SATA controller). Can be configured as RAID 1, 0, 1+0, RAID 5, JBOD or as individual drives**.
      • Multilane bridge (AD4SAML) for the latest SATA Multilane connection to connect up to 4 SATA/SATA II hard drives to system via 1 Infiniband Multilane cable
      • JBOD USB (AD4IDEU2) to connect up to 4 IDE hard drives  as JBOD (1 large combined drive or 2 large combined drives), or 4 individual drives to computer via 1 USB 2.0/1.1 port
      • 4 eSATA connectors for connecting 4 hard drives to system via 4 individual eSATA cables.
    • Light weight and sturdy metal frame construction
    • Compact size
    • Swing open front panel for convenient access to disk drive.
    • Ventilated front panel for efficient air flow.
    • Low noise high CFM ball bearing cooling fan
    • 150W 110/220 power supply
    • Power and drive access LEDs (drive access LED available only on model with Port Multiplier or JBOD USB controller)
    • Individual storage device can be hot swapped* when installed with 2.5" SATA Mobile Rack solutions

* For eSATA connection, hot swap feature depends on the controller. All Addonics SATA controllers support the hot swap feature. The Mini Storage Tower can be powered down and restarted to swap out hard drive without rebooting the system.

**Independent drive configuration is only supported with controllers with Silicon Image SIL3124 or SIL3132 chip set.

 IDE and SATA hard drive can be mixed in the Mini Storage Tower. IDE hard drives can be changed to SATA interface with the addition of IDE - SATA converter. SATA hard drives can be changed to IDE interface with the addition of SATA - IDE converter.


For power and drive access (access LED for model with Port Multiplier and JBOD USB back panels only)
Drive Bays 4 standard 5 1/4" drive bays
Connectors on back panel
MST4SR5HM, MST4SR5HM-B - eSATA and USB type B connectors
- 4 eSATA connectors
MST5X1PM, MST5X1PM-B- 1 eSATA connector
MST4ML, MST4ML- 1 MultiLane 4X connector
MST4IDEU2, MST4IDEU2 - 1 USB 2.0 type B connector
MSTMPC, MSTMPC-B - no back panel

Supported Operating Systems

Mini Storage Tower is OS Independent. Support for Operating Systems depend on type of interface or back panel used.

USB 2.0/1.1
- Windows 98SE, Me, 2000, XP, 2003, Linux kernel 2.4 and higher, Solaris 9.0 and higher, Mac OS 10

SATA/eSATA - DOS, Windows NT/SP6, 98SE, Me, 2000, XP, 2003, Linux kernel 2.4 and higher, Mac OS 10

Multilane - Windows 98SE, Me, NT 4.0, 2000, XP, 2003 and Linux, Mac OS 10.4.x with G4 or G5

Number of LED lights: 5

Power Supply:

150 Watts 110/220V input
Cooling fan 1


4.9 lb (2.22 kg) (78.4oz)


5.25 x 10.4 x 7.25 inch (133.35 x 264.16 x 184.15 mm) (W x D x H)

Operating Humidity:

20% - 80%

Operating Temperature:

5C - 35C

Warranty: One Year

No additional files, specification sheets, guides or documentation found for product.

Warranty: 1 Year Return to Base

Full manufacturers warranty details are available at the manufacturers (Addonics) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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