Processor
L1UM1X8C
One Intel Xeon processor D-1541, FCBGA 1667
2.1GHz-2.7GHz, TDP support 45W
8 Cores, 16 Threads /12 MB
L1UM2X8C
One Intel Xeon processor D-1537, FCBGA 1667
1.7GHz-2.3GHz, TDP support 35W
8 Cores, 16 Threads /12 MB
L1UM3X16C
One Intel Xeon processor D-1587, FCBGA 1667
1.7GHz-2.3GHz, TDP support 45W
16 Cores, 32 Threads /24 MB
PCI-E Expansion Slots
L1UM1X8C
1x PCI-E 3.0 x16 Full-height slot
1x M.2 PCIe 3.0 x4, M Key 2242/2280/2210
L1UM2X8C
1 PCI-E 3.0 x8 Full-height slot
1 M.2 PCIe 3.0 x4, M Key 2242/2280/2210
Mini-PCIe with mSATA
L1UM3X16C
1x PCI-E 3.0 x8 Full-height slot
1x M.2 PCIe 3.0 x4, M Key 2242/2280/2210
Mini-PCIe with mSATAs