Package Contents:
1pc MACHINIST X99 MR9A-PRO motherboard
1pc LGA2011 series cooling fan bracket
1pc SATA cable

Specifications:
CPU: Supports Intel Xeon E5 V4/V3 and Intel Core i7 series processors on LGA 2011-3 socket
Chipset: Intel B85
Socket: LGA 2011-3
Technology: 4x DDR4 DIMM, up to 128GB (32GB*4),
Memory: 4 x DDR4 2133/2400/2666/3200MHz, the actual frequency depends on the processor type;
Supports quad-channel desktop memory, non-ECC, ECC and RECC memory;
Network: Realtek 8111H 1000 Mbps LAN
Audio: Realtek ALC897 chip
Platform: Windows, Linux
Power supply: 8-phase power supply
Quick boot key: F11
BIOS entry: DEL
Size: 285*215 mm, ATX
Package weight: 1500 g
Without loading the video card: Supported
Virtualization: Supported
As a server motherboard, it can be run without installing a video card.

Expansion Slot:
2 x PCIe 3.0 x16, 1 x PCIe 3.0 x4, 1 x PCIe 3.0 x1

Rear I/O:
2x PS/2 Keyboard/Mouse Ports
1x LAN Port (RJ45)
2x USB 3.0 Ports
6x USB 2.0 Ports
3x Audio Jacks

Internal I/O:
1x USB 2.0
1x USB 3.0
2x M.2 Sockets (NVMe Protocol)
1x M.2 WiFi Socket (WiFi Card Not Included)
6x SATA 6Gbps
2x For CPU Fans
2x For Case Fans
2x 5V MOS For Fans
1x Front Audio Out
1x ATX 12V 8-Pin Power Connector
1x EATX 24-Pin Power
1x Front panels
1x Clear CMOS jumper
1x JLPC
1x JME
1x COM port
1x SPK connector
1x JTPM (14-1LPC)

TPM usage instructions:
1. Required for Windows 11 installation.
2. Use MSI TPM 2.0 module in LPC slot 14-1; otherwise, the system will not boot.

Tips: When using Intel Core i7 5820K, 5960X, 6900K and other processors, many memory modules may not boot after installation. Try several memory kits. During the test, we used 5 memory kits, but only 2 of them were able to boot on the i7 processor.