19" 4U, 2xPSU, 2xLGA4189, up to 4TB (16 slots) DDR4 ECC Reg., 36x3.5" SAS/SATA hot-swap drive bay, 1xM.2 NVMe

19" 3U, 2xPSU, 1xLGA4677, 8 slots DDR5 ECC Reg, 16x3.5" SAS/SATA hot-swap drive bay, , 2xM.2 NVMe (22110), Black

19" 4U, 2xPSU, 1xLGA4677, 8 slots DDR5 ECC Reg, 24x3.5" SAS/SATA hot-swap drive bay, , 2xM.2 NVMe (22110), Black

19" 4U, 2xPSU, 1xLGA4677, 8 slots DDR5 ECC Reg, 36x3.5" SAS/SATA hot-swap drive bay, 2xM.2 NVMe (22110), Black