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Green ATX motherboard with silver heatsinks, eight DDR4 slots, four PCIe 3.0 x16 slots, LGA 2066 socket, six SATA ports

MSI

MSI PRO X299 PRO LGA 2066 Intel motherboard

SKU CH-4RB1-HR7RN

ATX board for LGA 2066 Intel Core X-series CPUs with eight DDR4 slots, four PCIe 3.0 x16 slots, six SATA ports and two M.2 slots

  • ProcessorSupports Intel Core X-series 10000/9000/78xx (above) process
  • ChipsetIntel X299
  • Form factorATX
  • CPU socketLGA 2066
  • Memory slot count8 × 288pin (DDR4)
  • Supported memorySupports DDR4 4200+(OC)/ 4000(OC)/ 3800(OC)/ 3733(OC)/ 3600(
  • Supports Intel Core X-series 10000/9000/78xx processors for LGA 2066 socket
  • 8 DDR4 slots deliver up to 256 GB quad-channel memory capacity
  • 4 PCIe 3.0 x16 slots scale from x16/x8/x16/x8 with 48-lane CPUs
  • Dual M.2 slots accept 2242/2260/2280/22110 drives at PCIe 3.0 x4 or SATA 6Gb/s
  • Dual LAN with Intel I219V and Realtek 8125-CG plus Realtek ALC1220 7.1 audio

Intel X299 chipset for Core X-series

This MSI PRO X299 PRO motherboard uses the Intel X299 chipset and LGA 2066 socket to support Intel Core X-series 10000, 9000 and 78xx processors. It provides eight DDR4 memory slots in a quad-channel layout with a maximum capacity of 256 GB. The ATX form factor fits standard workstation cases.

Sustained multi-GPU and storage bandwidth

Four PCIe 3.0 x16 slots operate at x16/x8/x16/x8 with a 48-lane CPU, x16/x4/x16/x8 with a 44-lane CPU, and x16/x4/x8/x0 with a 28-lane CPU. Two M.2 Key M slots accept 2242, 2260, 2280 and 22110 devices at PCIe 3.0 x4 or SATA 6Gb/s. Six SATA 6Gb/s ports support RAID 0, 1, 5 and 10, though SATA1 is disabled when a SATA M.2 drive occupies M2_1.

Dual LAN and high-definition audio

Networking combines a Realtek RTL8125-CG controller with an Intel I219V PHY. Audio uses the Realtek ALC1220 codec for 7.1-channel output with S/PDIF. The board has no onboard video, so a discrete graphics card is required. Only the motherboard and I/O shield are included.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $293.99
Pricier than about 90% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameMSI
Product linePRO
Model nameX299 PRO
Processor
ProcessorSupports Intel Core X-series 10000/9000/78xx (above) processors for socket LGA2066
CPU socketLGA 2066
ChipsetIntel X299
Memory
Memory slot count8 × 288pin (DDR4)
Supported memorySupports DDR4 4200+(OC)/ 4000(OC)/ 3800(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3400(OC)/ 3333(OC)/ 3300(OC)/ 3200(OC)/ 3000(OC)/ 2933/ 2666/ 2400/ 2133 MHz
* For the latest information about memory, please visit http://www.msi.com
Max supported RAM256 GB
Memory channelsQuad Channel
Storage
SATA ports6 x SATA 6Gb/s ports
* The SATA1 connector will be unavailable when a SATA M.2 SSD has been installed in the M2_1 slot.
Optane memory supportIntel Optane Memory Ready*
* M2_2 supports Intel Optane Memory by switching to PCH lanes.
SATA and RAID support0/1/5/10
Graphics
Onboard video chipNone
Audio & video
Audio chipRealtek ALC1220
Sound channels7.1-Channel High Definition Audio
Supports S/PDIF output
Connectivity
Ethernet controllerRealtek RTL8125-CG
Second LAN controllerIntel I219 V
* I219 LAN doesn't support G3 to S5 Wake
Maximum network speed2.5 Gbit/s + 1 Gbit/s
Ports & slots
Onboard USB headers2 x USB 2.0 connectors (supports additional 4 USB 2.0 ports)
2 x USB 3.2 Gen1 connectors (supports additional 4 USB 3.2 Gen1 ports)
1 x USB 3.2 Gen2 Type-C port
Power
Power connectors1 × 24-pin ATX main power connector
2 × 8-pin ATX 12 V power connectors
Size & build
Form factorATX
Width and length12.0 in × 9.6 in

Questions about this item

Which Intel Core X-series processors are supported?

The board supports Core X-series 10000, 9000 and 78xx processors for the LGA 2066 socket.

How many DDR4 memory slots are available and what is the maximum capacity?

There are eight 288-pin DDR4 slots with a maximum supported capacity of 256 GB.

What happens to the M.2_2 slot when a card is installed in the PCI_E2 slot?

When a PCIe expansion card occupies PCI_E2, the M.2_2 slot switches from CPU lanes to PCH lanes.

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