StarTech.com 4 Bay 3.5in SATA SAS Backplane - Hot Swap Mobile Rack for 3 5.25in Bays - Trayless - HDD Rack - SAS Backplane - SATA Backplane - Hot swap up to four 3.5in SATA or SAS hard drives using three 5.25in bays - 4 Bay 3.5in SATA SAS Backplane

Trayless design for ease of use Supports SAS I/II and SATA I/II/III Hot swap drives between systems, using up to four 3.5? SATA or SAS drives in three 5.25? front bays Durable plastic and aluminum construction Two fans and venting to optimize heat dissipation Insertion rating of 50,000 cycles