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672042423323
Supermicro H12SSL-CT ATX Server Motherboard
672042423323

Supermicro H12SSL-CT ATX Server Motherboard

4.8(91 ratings)

Best price now

$1,258.87at Neobits.comChecked 1 h ago

26% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $1,258.87 at Neobits.com (checked Nov 10, 2026).
  • Checked at 6 stores.

Our take on the Supermicro H12SSL-CT ATX Server Motherboard

The H12SSL-CT is a single-socket ATX server board for AMD EPYC 7002 and 7003 processors on Socket SP3, with up to 64 cores per CPU. It stands out for packing dual 10GBase-T LAN, an onboard Broadcom 3008 SAS3 controller and eight DIMM slots into a standard ATX footprint, so it fits many tower and rack cases that reject larger server boards. It suits homelab builders, storage servers and small virtualization hosts who want EPYC core counts and 10G networking without a proprietary chassis. Against Supermicro's EATX H12 boards it trades memory slots and PCIe room for size and cost, and it lacks the newer PCIe 5.0 and DDR5 of EPYC 9004 platforms.

Best forHomelab and self-hosting buildsStorage servers using SAS drivesSmall virtualization hostsTower or rack builds limited to ATX
Pros
  • Supports EPYC 7002 and 7003 up to 64 cores
  • Dual 10GBase-T LAN built in
  • Onboard Broadcom 3008 SAS3 controller for 12 Gbps drives
  • Eight DIMM slots for up to 2TB registered ECC DDR4-3200
  • Standard ATX size fits common cases
  • IPMI remote management via ASPEED AST2500
Cons
  • Only eight DIMM slots, so 8-channel memory needs one DIMM per channel
  • No PCIe 5.0 or DDR5 support
  • Registered ECC DDR4 only; no unbuffered modules
  • SAS ports share lanes with some PCIe and SATA connections
  • Needs a server-oriented case and cooling for high-TDP EPYC chips

Supermicro H12SSL-CT ATX Server Motherboard prices at every store

  • Neobits.comNew

    In stock

    $1,258.87Free shippingChecked 1 h ago
    Visit Neobits.com
  • aloinfousa.comNew

    In stockReturn policy

    $1,267.69Checked 1 h ago
    Visit aloinfousa.com
  • Compu DevicesNew

    In stock

    $1,553.42Free shippingChecked 1 h ago
    Visit Compu Devices
  • serverblink.comNew

    In stock

    $1,695.00+ $10.00 shippingChecked 1 h ago
    Visit serverblink.com
  • GotodirectNew

    In stock

    $3,156.25Checked 1 h ago
    Visit Gotodirect
  • JescorNew

    In stockReturn policy

    $4,009.98Checked 1 h ago
    Visit Jescor

Store links may earn us a commission.

Supermicro H12SSL-CT ATX Server Motherboard price history

Lowest price we've seen: $1,258.87 on Nov 10 at Neobits.com. Tracked across 3 stores since Nov 10.

What reviewers say

  • 4.8 / 591 ratings

Owners rate it highly, praising its stability, the built-in 10G networking and the onboard SAS controller that saves an add-in card. Complaints center on memory population rules and the need for registered ECC DIMMs.

What people mention
  • StabilityPraisedOwners report it runs for months under load without issues.
  • NetworkingPraisedThe dual 10GBase-T ports are a common reason buyers pick this board.
  • SAS supportPraisedThe onboard Broadcom 3008 handles 12 Gbps SAS drives without an add-in card.
  • Memory rulesMixedBuilders find the DIMM population guidance tricky and note registered ECC is required.
  • DIMM countCriticisedEight slots mean one DIMM per channel to keep full 8-channel bandwidth.

From aloinfousa.com

  • ATX server motherboard for AMD EPYC 7003/7002 (Socket SP3)
  • 8-channel DDR4 memory support
  • Dual 10GBase-T networking
  • Onboard Broadcom 3008 SAS
  • Genuine Supermicro
  • Free worldwide DDP shipping
Guarantee
Warranty terms confirmed in quote.
Returns
Return terms confirmed in quote; ask to confirm applicable return terms before ordering.
Shipping
Free worldwide DDP shipping; freight, tracking, insurance and duties/taxes confirmed in quote.

About the Supermicro H12SSL-CT ATX Server Motherboard

The Supermicro H12SSL-CT is an ATX server motherboard for AMD EPYC 7003/7002 (Socket SP3) with 8-channel DDR4, dual 10GBase-T and onboard Broadcom 3008 SAS.Genuine Supermicro · Free worldwide DDP shipping.

Specifications

Form factor
ATXSource
Dimensions
12" x 9.6" (30.5cm x 24.4cm)Source
CPU support
Single AMD EPYC™ 7003/7002 Series ProcessorSource
Socket
Socket SP3Source
Max cores

Questions and answers

Which EPYC processors does it support?
Single AMD EPYC 7002 or 7003 series CPUs on Socket SP3, up to 64 cores. EPYC 7001 chips are not supported.
What memory do I need?
Registered ECC DDR4 at up to 3200 MHz, eight 288-pin DIMMs, up to 2TB total. Unbuffered and non-ECC modules will not work.
Does it fit a normal ATX case?
Yes, it is standard ATX at 12 by 9.6 inches. Check clearance for the CPU cooler and airflow, since EPYC chips run hot.
How many drives can I connect?
Eight SATA3 ports plus the Broadcom 3008 SAS3 controller for 12 Gbps SAS drives. Some lanes are shared, so check the manual before filling every port.
Is remote management included?
Yes, the ASPEED AST2500 provides BMC graphics and IPMI for headless setup and remote control.
Is it worth it over a larger H12 board?
If you need ATX size and built-in 10G and SAS, yes. If you need more DIMM slots or PCIe lanes, Supermicro's EATX H12 models fit better.
Where is the Supermicro H12SSL-CT ATX Server Motherboard cheapest?
At Neobits.com, for $1,258.87, 26% under what the other stores charge, as of our latest check.
What do buyers say about the Supermicro H12SSL-CT ATX Server Motherboard?
Rated 4.8 out of 5 from 91 ratings.
Where can I buy the Supermicro H12SSL-CT ATX Server Motherboard?
6 stores we checked sell it, including Jescor, Neobits.com, Compu Devices, serverblink.com, aloinfousa.com.

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Buying guides that pick the Supermicro H12SSL-CT ATX Server Motherboard

  • Best single-socket AMD EPYC SP3 server motherboards
  • Best single-socket AMD EPYC SP3 motherboards

Stores we've priced the Supermicro H12SSL-CT ATX Server Motherboard at

  • Neobits.com deals and prices
Up to 64 Cores
Source
Memory slots
8 DIMM slotsSource
Max memory
Supports up to 2TB Registered ECC DDR4 3200MHz SDRAMSource
Memory type
DDR4 3200 MHz Registered ECC, 288-pin gold-plated DIMMsSource
SAS controller
Broadcom 3008 SAS3 (12 Gbps) controllerSource
LAN
Dual 10GBase-T LAN via Broadcom BCM57416Source
SATA ports
8 SATA3 (6 Gbps) portsSource
USB ports
6 USB 3.0 portsSource
Number Of Cores
Up to 64 Cores
Motherboard Socket Type
Socket SP3
Motherboard Chipset
System on Chip
Motherboard Form Factor
ATX
Motherboard Model
H12SSL-CT
Manufacturer
Supermicro Computer, Inc, ASPEED, Broadcom
Socket Type
Socket SP3
CPU Compatibility
EPYC, AMD
Motherboard Compatibility
ATX
GPU Manufacturer
ASPEED
GPU Model
AST2500
GPU Chipset
AST2500