Gigabyte X299 UD4 Pro LGA2066 ATX Motherboard (GA-X299-UD4-PRO) - Support for Intel® Core™ X series processors in the LGA2066 package, 8 x DDR4 DIMM sockets supporting up to 128 GB of system memory, 4 x DDR4 DIMM sockets supporting up to 64 GB of system memory, 1 x M.2 connector (Socket 3, M key, type 2242/2260/2280 SATA and PCIe x4/x2 SSD support) (M2Q_32G), 1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 SATA and PCIe x4/x2 SSD support) (M2P_32G), 8 x SATA 6Gb/s connectors, NVIDIA Quad-GPU SLI, Realtek ALC1220 codec High Definition Audio 2/4/5.1/7.1-channel, Support for S/PDIF Out, Connectivity: Internal I/O Connectors: 1 x 24-pin ATX main power connector, 1 x 8-pin ATX 12V power connector, 1 x CPU fan header, 1 x water cooling CPU fan header, 2 x system fan headers, 1 x 3 Amp fan/water cooling pump header, 1 x digital LED strip header, 1 x digital LED strip power select jumper, 2 x RGB (RGBW) LED strip extension cable headers, 2 x M.2 Socket 3 connectors, 8 x SATA 6Gb/s connectors, 1 x Intel VROC Upgrade Key header, 1 x front panel header, 1 x front panel audio header, 1 x S/PDIF Out header, 2

USB 3.1 Gen 1 headers, 2 x USB 2.0/1.1 headers, 1 x Thunderbolt™ add-in card connector, 1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S module only), 1 x temperature sensor header, 1 x Clear CMOS jumper, Back Panel Connectors: 1 x PS/2 keyboard/mouse port, 2 x USB 3.1 Gen 2 Type-A ports (red), 6 x USB 3.1 Gen 1 ports, 1 x RJ-45 port, 6 x audio jacks (Center/Subwoofer Speaker Out, Rear Speaker Out, Side Speaker Out, Line In, Line Out, Mic In), USB: 10 x USB 3.1 Gen 1 ports (6 ports on the back panel, 4 ports available through the internal USB headers), 4 x USB 2.0/1.1 ports available through the internal USB headers, Windows 10 64 Bit