X99-VAA1 specification

South Bridge

X99 Chipset series （SLKM8）

RAM

Technology

Dual-channelDDR4 2133MHZ/2400MHZ/2666MHZ

Maximum capacity

256GB

Memory

8 * 288-Pin DDR4/ECC

Rear I/O

PS/2

1 keyboard interface and 1 mouse interface

USB 

4*USB3.0；4*USB2.0

Ethernet

2 Gigabit network cards, RTL8111E network card chip

Audio

1*(Mic-in, Line-out、Line-in)

Internal connector

USB 2.0

4 (One FUSB can transfer out two USB 2.0 interfaces)

USB 3.0

2 (One FUSB can transfer out two USB 3.0 interfaces)

PCIE

2*PCI Expres X4

Graphics

2 PCI Expres X16

M.2

1 PCIe M.2（NVME）、1 SATA M.2（SATA）

ATXPWR 

2 standard 1x8Pin power outlets; 1 x standard 1x24Pin power outlet

Audio

1*2x5Pin 

Dimension

Size

290mm x 290mm