Gigabyte MS73-HB2 Motherboard

C741 · LGA4677 (Socket E) · E-ATX · DDR5

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Chipset C741
Form factor E-ATX
Memory slots 16
Socket LGA4677 (Socket E)
Memory type DDR5

Gigabyte MS73-HB2 Motherboard is an E-ATX and C741 chipset motherboard for LGA4677 (Socket E) processors and DDR5 memory. It came out in 2026.

Released: 2026-06-02
Socket: LGA4677 (Socket E)

Specifications

Key specs

Chipset: C741
Form factor: E-ATX
Memory slots: 16
Socket: LGA4677 (Socket E)
Memory type: DDR5
Released: 2026-06-02
Part number: 9MS73HB2MR-000
EAN / UPC: 4719331851316

Processor

Processor manufacturer: Intel
Processor socket: LGA 4677 (Socket E)
Compatible processor series: Intel® Xeon®
Maximum number of SMP processors: 2
Supported processor sockets: LGA 4677 (Socket E)

Memory

Supported memory types: DDR5-SDRAM
Number of memory slots: 16
Memory slots type: DIMM
Memory channels: Octa-channel
Supported memory clock speed (max): 5600 MHz

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Storage controllers

Supported storage drive types: HDD & SSD
Supported storage drive interfaces: M.2, SATA, SlimSAS
Number of HDDs supported: 14
Number of storage drives supported: 16
RAID support: Yes
RAID levels: 0, 1, 5, 10

Graphics

On-board graphics card: Yes
Graphics card family: ASPEED
On-board graphics card model: Aspeed AST2600

Internal I/O

USB 3.2 Gen 1 (3.1 Gen 1) connectors: 1
Number of SATA connectors: 2
Front panel connector: Yes
ATX Power connector (24-pin): Yes
CPU fan connector: Yes
Number of CPU fan connectors: 2
Number of chassis fan connectors: 4
EPS power connector (8-pin): Yes
Number of EPS power connectors (8-pin): 2
TPM connector: Yes
12V power connector: Yes

Rear panel I/O ports

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: 2
Ethernet LAN (RJ-45) ports: 4
VGA (D-Sub) ports quantity: 1
Serial ports quantity: 1

Network

Ethernet LAN: Yes
Ethernet interface type: 10 Gigabit Ethernet, Gigabit Ethernet
LAN controller: Intel® I210-AT, Broadcom BCM57416

Features

Motherboard chipset: Intel C741
Product colour: Blue
Component for: Server
Motherboard form factor: Extended ATX
Motherboard chipset family: Intel
Cooling type: Passive
Power source type: ATX

Expansion slots

PCI Express x16 (Gen 5.x) slots: 6
Number of M.2 (M) slots: 2
1st M.2 largest key size: 22110
1st M.2 highest PCI Express generation: 4.0

Operational conditions

Storage temperature (T-T): -40 - 60 °C
Operating temperature (T-T): 10 - 40 °C
Operating relative humidity (H-H): 8 - 80%
Storage relative humidity (H-H): 20 - 95%

Weight & dimensions

Width: 304.8 mm
Depth: 330.2 mm

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Compatible processors

LGA4677 (Socket E) socket

None in the catalog yet.

Compatible memory

DDR5

Kingston FURY Beast 32GB (2x16) DDR5-6000 CL3632 GB (2x16) · DDR5
ADATA XPG Lancer RGB 32GB (2x16) DDR5-6000 CL3032 GB (2x16) · DDR5
Klevv Cras V RGB32 GB (2x16) · DDR5
Klevv 32GB (2X16GB) 6400MHz CL32 DDR5 GAMING RAM MODULE 32-38-38-78 1.35V URBANE V RGB BLACK KIT32 GB (2x16) · DDR5
Klevv Bolt V32 GB (2x16) · DDR5
Klevv Fit V16 GB (1x16) · DDR5
Kingston 64GB 5200MT/s DDR5 CL36 DIMM (Kit of 2) FURY Beast Black EXPO64 GB (2x32) · DDR5
VeloxStor 7011-DDR, 16 GB, DDR5, 4800 MT/s, 288-pin UDIMM16 GB (1x16) · DDR5

About this product

Accelerating Artificial Intelligence and Leading Efficiency Engineering richer features in a revolutionary platform, Intel has made an incredible jump in processor performance in the business transformation journey. AI and deep learning performance will benefit from the built-in AI acceleration engines, while networking, storage, and analytics leverage other specialized accelerators in the 4th & 5th Gen Intel Xeon Scalable processors. Adding a host of new features to target a wide range of workloads, the new families of Intel Xeon processors will deliver even better CPU performance and performance per watt, and do so on a PCIe 5.0 platform with 2x the prior gen throughput to greatly speed up data movement to and from GPUs and storage. For this new platform, GIGABYTE has products ready to get the most out of Intel Xeon CPU-based systems that support fast PCIe Gen5 accelerators and Gen5 NVMe drives, in addition to support for high performant DDR5 memory.

User manual (PDF) · Datasheet (PDF)

MS73-HB2 vs similar motherboards

	Gigabyte MS73-HB2 Motherboard	Gigabyte MS33-CP0 Motherboard	Gigabyte MS33-AR0 Motherboard	Gigabyte MS73-HB1 Motherboard
Chipset	C741	C741	C741	C741
Form factor	E-ATX	E-ATX	E-ATX	E-ATX
Memory slots	16	16	16	16
Socket	LGA4677 (Socket E)	LGA4677 (Socket E)	LGA4677 (Socket E)	LGA4677 (Socket E)
Memory type	DDR5	DDR5	DDR5	DDR5
Released	2026	2026	2026	2025