The SN21G5 is Shuttle’s latest product for the Athlon64 socket 939 line. This XPC uses the NVIDIA GeForce 6100 chipset, supporting the following: all Athlon64 socket 939 type processors, DDR style DRAM modules operating in Dual Channel mode at speeds up to 400MHz officially, onboard GeForce 6100 video, and PCI Express x16 video cards operating in single card mode only.



Link: HardOCP