Item Specifications:
Brand: MACHINIST
Model: X99 PR9-A
Chipset: Intel 8 Series Chipset

Socket Type: LGA 2011-3
Processor: Supports Intel Xeon E5 V4 & V3 Series, and Intel Core i7 series CPU processor on LGA 2011-v3 Socket.

This X99 PR9 Motherboard does not support i7-5820K and you will meet the issue of no display with this processor.
Support Memory Type: 4 x DDR4 DIMM

Maximum Memory Capacity: 128 GB
Memory Channel: Dual Channel Mode
LAN: Realtek 8111H 1000Mbps RJ45 Ethernet
Audio: Realtek ALC897 chip, 2.1 Channels
PCIe: 1 x PCIe 3.0 x 16, 1 x PCIe 2.0 x 1
Storage: 3x SATA 3.0 prots, 1x M.2 slot (Support SATA(NGFF)/NVMe M.2)
Power Supply: The Intel x99 motherboard adopts a 6-phase power supply
Applicable Hard Disk: Supports 2.5-inch SATA SSD, 3.5-inch HDD, MVME M.2 SSD, SATA M.2 SSD.
Enter BIOS: Turn the computer motherboards on, and press the main "DEL" key continuously.
Quick Boot Button: F11 - Turn the x99 matx motherboard on, and press the F11 key continuously.
M.2 Mode Switching: Support NVME M.2 or SATA(NGFF) M.2, default mode is NVME M.2;
RAID: Not supported
Overclocking: Not supported
Origin: Mainland China, Certification: RoHS, CE
Usage Scenario: Gaming, Audio & Video, Office, Others


Memory Description:
Technology: Dual-channel, DDR4 2133/2400/MHz; the frequency depends on your CPU.
Maximum capacity 128GB=4x32GB;
Memory slot: 4 x DDR4 DIMM RAM;
Supported memory type: Supports DDR4 desktop and server DDR4 ECC memory and DDR4 RECC memory. (Please use Samsung, Kingston, Sandee, Micron, Hynix, and other international brands, other brands may not be compatible);

Back I/O Ports:
1 x PS/2 keyboard/mouse port(s),
1 x LAN(RJ45) port(s),
6 x USB 2.0,
2 x USB 3.0,
3 x Audio jack(s)

Internal Connector:
1 x USB 3.0 connector,
1 x USB 2.0 connector,
1 x M.2 Socket (SATA/NVME M.2),
3 x SATA 6 Gb/s connectors,
2 x CPU Fan connectors (2 x 4 -pin),
1 x 5V MOS Fan connectors (1 x 2 -pin),
1 x Front audio out header,
1 x 8-pin ATX 12V Power connectors,
1 x 24-pin EATX Power connector,
1 x Front panel connector,
1 x Clear CMOS jumper (1 x 2 -pin),
1 x SPK header (1 x 4 -pin).

Physical Dimensions:
Size: 205*185mm; M-ATX
Motherboard weight: about 890g.

Package Included:
1Pcs x MACHINIST X99 PR9-A Motherboard DDR4 White Mainboard
1Pcs x I/O Dhield,
1Pcs x CPU Fan Bracket,
1Pcs x SATA Cable
Note:
(1) The color of the bottom plate of the slot may vary from batch to batch, but it will not affect the use of the product. The product is constantly optimized and upgraded.
(2) Please allow 1-3mm differences due to manual measurement.