OWC Mercury Elite Pro Qx2 4-Bay HD MACHINE RAID USB3 ESATA FW800 + Cables

Description

This auction is for the enclosure only.
The condition is used. It looks great with minimal signs of use. All features work.
This is a very capable and still relevant hardware RAID drive fromOWC Other World Computing. This company makes great hardware, especially for Apple. This RAID however, can go on any system because the raid controller is built into the drive enclosure.
Change the RAID type with a switch and rest button. The enclosure has status lights to inform you of what the RAID is doing or and the status of each drive. The enclosure came even be locked. It comes with 2 matching keys.
Included power cable, 2 FireWire 800 cables and 1 usb 3 cable. The enclose will work with esata. Esata cable is not included.
From the web:
OWC Mercury Elite Pro Qx2
4-bay add your own drives enclosure kit
Mac / PC / USB 3.0 & 2.0 / FireWire 800 (FireWire 400 Backwards Compatible) / eSATA
The Ultimate Blend of Professional
Performance and Convenience
Install your own set of four matched (same part number) 3.5" Serial ATA (SATA I/II) hard disk drives into this brushed aluminum enclosure with Hardware RAID setting flexibility and experience up to 300MB/s data transfer speed for high performance data storage and redundancy.
User-Selectable Hardware RAID Settings
Thanks to a front panel selector switch, the Mercury Elite Pro Qx2 enables easy configuration of the hardware RAID settings to Span, 0, 1, 5, 10, and JBOD/Independent drive modes – so you can select the best combination of speed, capacity, redundancy.
Span
Combines the capacity of two or more drives of the same size without any RAID data distribution scheme into one logical desktop volume. This mode can combine the capacity of varying size drives based on the lowest capacity drive in the set.
RAID 0 (Stripe)
Data is split into blocks over two or more drives at same time for high speed and large capacity. The ideal RAID setting for demanding video production/editing.
RAID 1 (Mirror)
The same data is written to two drives for highest level of data safety and redundancy.
RAID 5 (Stripe with Parity)
Data is Striped (RAID 0) while incorporating redundancy over three or more drives for the best combination for speed, capacity, and redundancy. The Multi-Interface 4 Bay Enterprise Class Performance RAID Solutions are pre-configured as RAID 5.
RAID 10 (1+0)
Data is Striped (RAID 0) over two Mirrored sets (RAID 1) of drives for fast redundancy.
JBOD/Independent drive operation
Each drive mounts as an individual volume.
Uses four 3.5" SATA hard drives
(Drives not included)