Designed for optimal performance, the SuperServer is ideal for network infrastructure, front-end enterprise, and minimal-downtime cluster server systems..Power device: power adapter.Dimensions: 1.7"H x 10"W x 8.9"D.3-year manufacturer limited warranty.RoHS, ACPI 5.0.Four expansion slots for upgrading your system.Connectivity interfaces: 1 x PCIe 3.0 x8, 1 x M.2 Card (Key M), 1 x M.2 Card (Key B), 1 x Mini PCIe/mSATA.Ultra small form factor server.Optical drive: no optical drive.Quad-Core processor