Chenbro RM245 Series 8-port 3.5' Mini-SAS HD Backplane 2U short depth chassis without HDD module, with 800W single PS, optional for redundant 2U ATX Highly Flexible Storage Server Chassis Get Affordable & Customized Solution The RM245 Series is a flexible configuration architecture that enables you to customize affordable solutions for your growing business. Spend Less to Maintain Your Chassis Easy maintenance is essential for IT operators, the RM245 Series offers users simple and quick ways to maintain chassis. Taking the advantage of Chenbro’s unique tool-less 2.5' and 3.5' HDD trays, IT operators can save up to 80% of HDD installation time, via 2 simplesteps--“slide in' and “push down' HDDs. Backplane Type Passive Host Interface 2 x SFF-8643 HDD Interface 8 x SFF-8680 SAS Expander N/A Features Temperature Monitoring, Smart Fan, Fan Alarm, I2C