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Green rectangular server motherboard, extended ATX size, silver LGA 4677 socket, sixteen black DDR5 DIMM slots, dual 10G LAN ports

GIGABYTE

GIGABYTE MS33-AR1 server motherboard E-ATX LGA 4677 C741 16 DIMM 128GB 10G LAN

SKU CH-MDGH-53BBF MPN MS33-AR1

Extended ATX server board with LGA 4677 socket, 16 DDR5 DIMM slots up to 128GB, and dual 10GbE LAN

  • ProcessorIntel Xeon
  • Form factorExtended ATX
  • CPU socketLGA 4677
  • Supported CPU count1
  • DDR standardDDR5 memory supported only
  • Supported memoryUp to 4800 MHz (1DPC), 4400 MHz (2DPC)
  • Supports 4th Gen Intel Xeon Scalable processors via LGA 4677 socket
  • 16 DDR5 DIMM slots deliver up to 128GB memory capacity
  • Dual 10GbE LAN ports provide high-throughput networking
  • Extended ATX form factor fits standard server chassis
  • 2 SlimSAS connectors enable 8 SATA 6Gb/s drives

Extended ATX server motherboard

The GIGABYTE MS33-AR1 is an Extended ATX server motherboard built for the LGA 4677 socket and the Intel C741 chipset. It accepts a single Intel Xeon processor and provides sixteen DDR5 DIMM slots across eight channels, with a maximum memory capacity of 128 GB.

Single-processor platforms with 10 GbE needs

This board suits deployments that need one processor, eight-channel DDR5 memory and dual 10 GbE BASE-T ports driven by the Broadcom BCM57416 controller. A dedicated management port and Aspeed AST2600 graphics are also included. Builders who require dual-socket configurations or more than twelve SATA connections should look at other form factors.

Sixteen DDR5 slots capped at 128 GB

The sixteen DIMM sockets support DDR5 RDIMMs at up to 4800 MHz with one module per channel or 4400 MHz with two per channel, but the total installed memory cannot exceed 128 GB. This limit decides whether the platform can hold the dataset a given workload requires.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $700.99
Pricier than about 90% of the 776 comparable items (median $254.49).

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Specifications

Product
Brand nameGIGABYTE
Model nameMS33-AR1
Part numberMS33-AR1
Processor
ProcessorIntel Xeon
CPU socketLGA 4677
Supported CPU count1
Memory
Supported memoryUp to 4800 MHz (1DPC), 4400 MHz (2DPC)
Max supported RAM128 GB
Graphics
Onboard video chipAspeed AST2600
Connectivity
Number of LAN3
Ethernet controllerBCM 57416
Maximum network speed10 Gbit/s
Ports & slots
USB 3.22 x USB 3.2 Gen1
Size & build
Form factorExtended ATX
Width and length304.8 W × 330.2D (mm)
Shipping weight1.88 kg
Package size406 × 356 × 76 mm
More details
DDR standardDDR5 memory supported only

Questions about this item

Does the GIGABYTE MS33-AR1 include mounting hardware or cables, or must I buy them separately?

The product is supplied as the motherboard only; screws, rails, and any SlimSAS or SATA cables required for the 8 x SATA 6Gb/s ports must be purchased separately.

Should I populate all 16 DIMM slots to reach the 128 GB maximum, or can I use fewer modules?

The board supports up to 128 GB across 16 slots; using fewer higher-capacity DDR5 RDIMMs is possible, but the 4800 MHz speed applies at 1 DPC and drops to 4400 MHz at 2 DPC.

What real-world throughput can I expect from the two 10 Gb/s BASE-T LAN ports once the server is running?

Each Broadcom BCM57416 port delivers up to 10 Gbps line rate; actual throughput depends on CPU load, storage speed, and network conditions, but the hardware ceiling is 10 Gb/s per port.

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