The RCK-203BE is the first and only 2U chassis that supports System Host Board (SHB) through 2U PICMG 1.3 butterfly backplane SBE-0502P. The backplane also supports (1) PCI-E 16X slot, (1) PCI-E 1X slot, and (2) PCI 32 bit 5V slots to configure additional expansions. The chassis boasts a depth of only 450mm (17”), thus providing an ideal solution for those applications where depth can make or break a project. The RCK-203BE supports up to three drive bays: (1) 5.25”CD-ROM/DVD-ROM, (1) 3.5” FDD, and (1) “hidden” internal 3.5” HDD. Two 8cm ball bearing professional fans ensure excellent airflow when faced with a heat sensitive application. The RCK-203BE provides a robust solution to any server application using System Host Board (SHB) while still remaining compact. Since PCI Express has been the main stream of the high speed interface, it can be used in graphic card, RAID card or video capture card expansions. Thus RCK-203BE would be the idealist one for DVR system or media stream server, to provide the combination of the last PCI Express technology. The chassis also comes with a optional 400W high quality power supply manufacturers.