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Unique design with delicate mechanism
MRA258 is made with ABS plastic and stainless steel.
We use stainless steel to make the rack, can avoid the risk of plating process and rust problem after usage.
The mechanical has many ingenuities:
-Tool free, Screw-less, and Tray-less structure.
-Patented design push bar, it connects to the door. And it gives very smooth feel while inserting and ejecting the HDD.
-Easy but safe open bottom and nice decorated silver trim on front panel.
-Well measured and presiced mechanical, fits two 2.5" SATA hard drive with good protection and smooth operation.
-World patent NSS connector, give 50,000 duty cycle to the hard drive under frequent hot-swap environment.

The only & first world patent Non-scratch SATA connector (NSS-C)
NSS-Connector is a movable connector.
It owns world patents, includes EU, USA , Japan, Korea, China, Taiwan and ets.
It gives point-to-point contact with hard drive.
It minimizes the friction that may cause the damage or scratch to the hard drive's gold finger.
It lengthens the life cycle of hard drive, we guarantee 50,000 duty cycles.
Model : MRA258
Model name
2x2.5 " internal enclosure
Type of HDD
Product Color
Black & Silver
Product Size
134 x 102 x 24 mm
Fits in 3.5" slot of all PC cases
Plastic ABS & Stainless Steel
Hot Swappable
Swapping Guarantee Cycle
Guarantee HDD hot swap cycle upto 50,000 times
Panel & Frame
Satin Finish
Product weight
282.5 g
Working Environment
0 ~ 50°C
Operating System
Windows 98/SE/ME/2000/XP/Vista ; Mac OS 9.0 and higher.
Screw x 4 ; SATA power cable x 2 ; SATA data cable x 2
Surveillance, Security, DVR, Media and Sever, Data backups


MRA258 fits 2 standards 2.5" SATA hard disk. It fully utilizes 3.5" floppy drive space by expanding two 2.5" SATA hard drives. Precise and accurate structure, gives well protect to the hard drive and smooth hot-swap environment. Applies world patent NSS connector, provide additional guarnatee of 50,000 hot-swap duty cycles. With CE and FCC safety certification and RoHs compliance.

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