3U CompactPCI, Conduction Cooled - TP 402/351-RC - 1.5 GHz Core 2 Duo Processor SBC. Up to 4 Gbytes DDR2 ECC SDRAM. XMC site, rear I/O; 2xSATA; 2xGigE; 2xUSB; 2xSerial, 512M Flash Disk. All in single 4HP slot. Options - Larger Flash Disk. Air cooled and commercial versions.