Rosewill RX358 USB 3.0 Hard Drive Enclosure

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A Look Inside

Inside the cardboard box is the enclosure itself, a blue USB 3.0 cable, an AC adapter, a small bag of screws and a small paper manual.  The USB 3.0 cable differs slightly than a typical USB cable.  This is a Type “A” connector to type “B” connector, but the “B” portion of the cable is taller to accomodate the extra tiny pins used by the 3.0 plug.  The “A” portion of the connector has the same form factor as a USB 2.0 cable, but has 5 extra pins near the back of the plug.

The enclosure looks rather industrial.  It has an aluminum top with an 80mm exhaust hole cut out of the top, which is covered in black mesh.  The top is secured to the main chassis with four phillips-head screws.  The bottom of the enclosure has been left off, to provide easy access for your first installation.

The front of the enclosure has black mesh, which allows for easy airflow.  Flanking both sides of the font are two blue LEDs; one to indicate power and the other to indicate drive activity.  The back of the enclosure has a single USB 3.0 port, a fan toggle switch, a 12V DC input, and a main power switch.


Wires run from the controller to the LEDs along the sides

The sides of the enclosure are covered by two black plastic pieces. Once these pieces are slid out you can see rails that look pretty standard for any hard drive mount.  Along both sides of the rails are wires that run from the rear control board to the front LEDs.  The wires are held in place with invisible tape.



The naked enclosure and Asmedia ASM1051 bridge chip

The control board looks pretty stanard.  It has a single “slide-in” SATA connector, with both power and data leads integrated.  The controller chip is a Taiwanese Asmedia ASM1051 controller bridge, which translates SATA commands to USB 3.0.  The cooling fan is a low-profile 80mm fan, which has been positioned to blow air over your hard drive rather than exhaust air from the cage.  The air pressure created is released from the vented front.


Plop ‘n’ Play… after you secure with screws

Installation is pretty straightforward.  All you do is plop down any standard 3.5″ hard drive device (up to 2 terabytes) and slide into the connector.  You secure the drive to the side rails with the included screws, just as you would in a standard PC case.  Once the drive is secure, the plastic rails are slid back into position and secured on the back plate.  With this in place you can place the bottom aluminum plate and secure with the included screws.  This is pretty standard stuff, but we’ve seen enclosures that had completely screwless installations or minimal movement.  Installing a drive isn’t a big deal and can honestly be done in less than a minute.