Used for about one year, in good working condition. Has some cosmetic scratches.

• High Reliability: Featuring with 3R (Redundant 80Plus Gold power supplies, Redundant Cooling Fans, and 12Gb/s Dual domain SAS Expander /controllers) can provide continuous operation in mission critical applications from interruption. Thanks to its hot-swap fan module with insulation design can effectively isolate fan vibration from HDD performance degradation.
• High Flexibility: The four SFF-8644 ports (12Gb/s ) external SAS controller can be configured with multi host server connections. Also it support daisy chain connectivity, it can provides most flexible expansion for variant storage applications.
• High Serviceability: The tool-less top covers and HDD full traveling 36″ (760mm travel) rails, it provides hassle free on rack service.
  A Green Choice: The built-in 80Plus Gold 1100W redundant PSU and smart fan control, it provides a power efficient operational expense.