Motherboards Supporting 256GB of Memory

AM5, E-ATX, DDR5, 256GB

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ASUS - ROG Crosshair X870E (Socket AM5) AMD X870 E-ATX DDR5 Wi-Fi 7 Motherboard with Integrated ROG RYUJIN 360 Liquid

$3,299.00as of 11/03/2026 21:57 PST - Details

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Spec score9.1

Pros

+Nine M.2 slots for extensive storage expansion

+10G LAN for fast wired networking

+Built-in Wi-Fi 7 for current wireless standards

+Supports up to 256 GB of DDR5 memory

+Integrated 360 mm liquid cooler included with the board

Cons

−E-ATX form factor needs a larger, compatible case

−Limited to the AM5 socket

Compared with the 11 motherboards on this page

+10G: the highest wired lan of the 9 here

+9 m.2 slots: the most m.2 slots of the 5 here

+256GB maximum memory: the highest maximum memory of the 11 here

−4 sata ports: 4 of the 7 here have more sata ports

How pros and cons are picked (About: Disclaimer)

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AM5, ATX, DDR5, 4 Memory slots

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Asus - ASUS ROG Crosshair X870E Edition 20 Motherboard

$3,569.99as of 11/03/2026 21:56 PST - Details

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Spec score8.5

Pros

+Five M.2 slots for fast SSD storage

+Wi-Fi 7 built in

+5G LAN for very fast wired networking

+Supports up to 256 GB of DDR5 memory

+Two PCIe x16 slots for multiple graphics cards

Cons

−Only four SATA ports for drives

Compared with the 11 motherboards on this page

+256GB maximum memory: the highest maximum memory of the 11 here

+5G: only 1 of 9 here have a higher wired lan

+5 m.2 slots: only 1 of 5 here have more m.2 slots

−4 sata ports: 4 of the 7 here have more sata ports

How pros and cons are picked (About: Disclaimer)

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AM5, ATX, DDR5, 4 Memory slots

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ASRock X870 Pro RS AMD Ryzen Socket AM5 ATX Motherboard DDR5 DIMMs 8000 MHz 256 GB PCIe Gen5 SATA3 6.0 Gb/s

$169.99as of 11/03/2026 21:56 PST - Details

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Spec score8.2

Pros

+Supports up to 256 GB of DDR5 memory

+Built-in Wi-Fi 7 for wireless connectivity

+2.5G LAN for faster wired networking

+Four SATA ports for storage drives

+DDR5 memory at up to 8000 MHz

Cons

−Single PCIe x16 slot limits graphics card options

Compared with the 11 motherboards on this page

+256GB maximum memory: the highest maximum memory of the 11 here

−1 pcie x16 slots: 3 of the 5 here have more pcie x16 slots

−4 sata ports: 4 of the 7 here have more sata ports

How pros and cons are picked (About: Disclaimer)

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ATX, DDR4, 256GB, 2 M.2 slots

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OLurkthu X99 Dual-Socket DDR3 Server Board with 10 SATA Ports and 2 M.2 | Ext ATX 33x30 cm board fits standard chassis

$105.72as of 11/04/2026 00:31 PST - Details

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Spec score8.9

Pros

+Supports up to 256 GB of RAM

+Ten SATA ports for many storage drives

+Two M.2 slots for fast storage

+Dual-socket design for server workloads

+Full ATX form factor

Cons

−Board measures 33 by 30 cm, larger than standard ATX

Compared with the 11 motherboards on this page

+256GB maximum memory: the highest maximum memory of the 11 here

+10 sata ports: the most sata ports of the 7 here

How pros and cons are picked (About: Disclaimer)

About this product

LGA2011-3, E-ATX, DDR4, 256GB

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SHANGZHAOYUAN X99 Dual CPU Motherboard LGA 2011-3 Server Motherboard for Intel i7 5th/6th Gen Xeon E5 V3/V4 Series

$184.99as of 11/04/2026 07:07 PST - Details

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Spec score8.7

Pros

+Dual CPU support for multi-processor workloads

+Supports up to 256GB of RAM

+Four PCIe x16 slots for multiple expansion cards

+Ten SATA ports for many storage drives

+Two M.2 slots for fast SSDs

Cons

−Large E-ATX form factor needs a full-size case

−Uses the older LGA2011-3 socket

Compared with the 11 motherboards on this page

+4 pcie x16 slots: the most pcie x16 slots of the 5 here

+256GB maximum memory: the highest maximum memory of the 11 here

+10 sata ports: the most sata ports of the 7 here

−1G: 5 of the 9 here have a higher wired lan

How pros and cons are picked (About: Disclaimer)

About this product

LGA1700, ATX, DDR5, 4 Memory slots

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ASRock Z790 PG Sonic ATX Motherboard, Intel 14th/13th/12th Gen LGA1700, DDR5 7200+ (OC), PCIe 5.0, Killer 2.5G LAN,

$179.99as of 11/03/2026 21:56 PST - Details

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Spec score8.4

Pros

+Supports Intel 14th, 13th and 12th Gen processors

+Supports up to 256 GB of DDR5 memory

+Four RAM slots for DDR5 memory

+Eight SATA ports for many storage drives

+PCIe 5.0 support

Cons

−Single PCIe x16 slot limits graphics card expansion

Compared with the 11 motherboards on this page

+256GB maximum memory: the highest maximum memory of the 11 here

−1 pcie x16 slots: 3 of the 5 here have more pcie x16 slots

How pros and cons are picked (About: Disclaimer)

About this product

LGA2011, mATX, 256GB, 1G

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SHANGZHAOYUAN X79 S7 Gaming Motherboard for Intel LGA 2011 Socket Xeon E5 Series CPUs, Support DDR3 RAM Max 256GB,

$52.99as of 11/04/2026 07:07 PST - Details

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Spec score8.4

Pros

+Supports up to 256GB of RAM

+ECC memory support for error-checking

+Gigabit 1G LAN port

+Compact mATX form factor

Cons

−Uses DDR3 memory

−Uses the older LGA2011 socket

Compared with the 11 motherboards on this page

+256GB maximum memory: the highest maximum memory of the 11 here

−1G: 5 of the 9 here have a higher wired lan

How pros and cons are picked (About: Disclaimer)

About this product

LGA2011, ATX, 8 Memory slots, 256GB

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Vvikizy Dual LGA 2011 E5 Server Motherboard, C602 Chipset Support for 8 DDR3 Slots 256GB RAM, with Multiple PCIe 3.0No price recorded yet.View on Amazon

Spec score8.8

Pros

+Eight memory slots support up to 256GB of RAM

+ECC memory support for error-checking

+Multiple PCIe 3.0 slots for expansion cards

+Gigabit LAN for wired networking

Cons

−Uses DDR3 memory, which is an older standard

Compared with the 11 motherboards on this page

+256GB maximum memory: the highest maximum memory of the 11 here

+8 memory slots: the most memory slots of the 5 here

−1G: 5 of the 9 here have a higher wired lan

How pros and cons are picked (About: Disclaimer)

About this product

LGA2011, 8 Memory slots, 256GB, 1G

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SUPERMICRO MOTHERBOARD MBD-X9DRG-HF-B LGA2011 C602 DDR3 PCI EXPRESS SATA 6GB/S B

$398.95as of 11/04/2026 07:10 PST - Details

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Spec score8.8

Pros

+Supports ECC memory

+Eight RAM slots for large memory capacity

+Supports up to 256 GB of RAM

+1G LAN ports

Compared with the 11 motherboards on this page

+256GB maximum memory: the highest maximum memory of the 11 here

+8 memory slots: the most memory slots of the 5 here

−1G: 5 of the 9 here have a higher wired lan

How pros and cons are picked (About: Disclaimer)

About this product

LGA2011-3, E-ATX, DDR4, 256GB

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MACHINIST Dual CPU Motherboard X99-D8-MAX Intel LGA 2011-3, E-ATX Server | Support Intel XEON E5 V3/V4, Core i7 5th/6th

$189.99as of 11/04/2026 00:04 PST - Details

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Spec score9.0

Compared with the 11 motherboards on this pagePros

+4 pcie x16 slots: the most pcie x16 slots of the 5 here

+256GB maximum memory: the highest maximum memory of the 11 here

+10 sata ports: the most sata ports of the 7 here

How pros and cons are picked (About: Disclaimer)

About this product

LGA1851, ATX, DDR5, 256GB

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MSI PRO Z890-S WiFi ProSeries Motherboard (Support Core Ultra Series 2 Intel Processors, LGA 1851, DDR5, PCIe 5.0, M.2,

$225.00as of 11/04/2026 00:18 PST - Details

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Spec score8.6

Compared with the 11 motherboards on this pagePros

+256GB maximum memory: the highest maximum memory of the 11 here

How pros and cons are picked (About: Disclaimer)

About this product