Number of MIBs: 2Number of PCIe Slots/MIB: 8 (supports dual-slot)PCIe Channels (at HIC): 16PCIe Data Transfer Speed (Industry Specification): 128GbpsThe Xpander Rackmount 8 & 16 systems are external PCIe expansion chassis that can support one or two server connections with up to eight discrete dual-slot GPU cards, coprocessors, or PCIe-based flash caching cards (Intel), giving you the ability to perform massive parallel calculations without taxing your server.Features 4U or 5U depending on desired configuration and I/O cardsEight PCIe Gen 3 x16 expansion slots (all supporting both dual-slot or single-slot cards) per unitSupport for 1-2 servers per Rackmount 8 or 16Two independent 1500W power supplies and cooling fans to meet almost any expansion requirement (1 per Main Interface Board, or ?MIB?)Simple, quick installation with minimal impact per rackmount computer; install HICs and drivers for devices you install in Xpander