SANS DIGITAL TowerRAID TR4X12G JBOD (RAID Supported via Controller Card) 4 Hot-Swappable 3.5 or 2.5 3.5 Drive Bays mini-SAS HD (SFF-8644) x 1 4 Bay 12G mini-SAS HD SFF-8644 SAS / SATA Modularize JBOD Storage Tower Drive: 4 x 3.5� or 2.5 SATA or SAS OS Supported: Supports PC, MAC and Linux. (Please check HBA or RAID controller driver compatibility.) Power Supply: 250W (115V-230V Switchable) Dimensions: 8.25 x 6.00 x 11.0 (H x W x D) Weight: 9.30 lbs. Package Contents: TR4X12G (1) Hot-swappable trays (4) Power Cord (1) Mini-SAS HD to Mini-SAS HD Cable (SFF-8644 to SFF-9644) (1) Screws (1 set) Quick Installation Manual & CD (1)