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Deal.ai › Compare

Supermicro H12SSL-I Motherboard vs Gigabyte MZ32-AR1 Server Motherboard

Buy the Gigabyte MZ32-AR1 for a new EPYC 7003 build: it has 16 DIMM slots, PCIe Gen4 throughout, two M.2 slots, SlimSAS for NVMe and SATA, and a dedicated management LAN. The Supermicro H12SSL-I is the simpler ATX board with 8 DIMM slots and a conventional layout, so it suits a compact chassis or a rebuild where E-ATX will not fit. On features and expansion the Gigabyte is clearly the stronger board; the Supermicro's edge is size and a long track record in white-box servers.

  • Choose the Supermicro H12SSL-I if you need an ATX board that fits a standard case and 8 DIMM slots are enough for your workload.
  • Choose the Gigabyte MZ32-AR1 if you want maximum memory capacity, PCIe Gen4 slots and NVMe storage on a single EPYC 7003 socket.

Prices

  • Supermicro H12SSL-I Motherboard: $545.76 at Walmart (last seen Nov 10)
  • Gigabyte MZ32-AR1 Server Motherboard: $730.00 at itpartspro (last seen Nov 10)
  • Difference: the Supermicro H12SSL-I Motherboard is $184.24 cheaper than the Gigabyte MZ32-AR1 Server Motherboard at the latest prices (Nov 10)
Supermicro
Supermicro H12SSL-I Single Socket SP3 EPYC Server Motherboard

Supermicro H12SSL-I Motherboard

Supermicro H12SSL-I Single Socket SP3 EPYC Server Motherboard

$545.76at WalmartChecked Nov 10
See all prices and details
Visit Walmart
Pros
  • ATX size fits standard cases and 19-inch racks with room to spare
  • 8 DIMM slots cover typical single-socket virtualization and storage nodes
  • Supermicro's server boards are widely documented and easy to source spares for
  • ECC DDR4 support with Ethernet, VGA and USB onboard
Cons
  • Half the DIMM slots of the Gigabyte, which caps memory capacity
  • No M.2 or SlimSAS listed, so NVMe needs PCIe add-in cards
  • PCIe generation is not spelled out, so confirm Gen4 before buying
  • No dedicated management LAN or BMC details given
Gigabyte
GIGABYTE MZ32-AR1 Server Motherboard DDR4 ECC RDIMM LRDIMM E-ATX

Gigabyte MZ32-AR1 Server Motherboard

GIGABYTE MZ32-AR1 Server Motherboard DDR4 ECC RDIMM LRDIMM E-ATX

$730.00at itpartsproChecked Nov 10
See all prices and details
Visit itpartspro
Pros
  • 16 DIMM slots in 8 channels, up to DDR4-3200, for memory-heavy workloads
  • Five PCIe Gen4 slots plus an OCP 2.0 mezzanine for NICs and accelerators
  • Two M.2 Gen4 slots and SlimSAS for NVMe and SATA without add-in cards
  • ASPEED AST2500 BMC with a dedicated management LAN for remote admin
  • Supports EPYC 7002 and 7003, up to 64 cores and 128 threads
Cons
  • E-ATX at 305 x 330 mm will not fit many standard cases
  • Only 1GbE onboard; 10GbE or faster needs a slot or OCP card
  • More slots and connectors mean more to configure and cool

What separates them

Supermicro H12SSL-I MotherboardGigabyte MZ32-AR1 Server Motherboard
Form factorATXE-ATX, 305 x 330 mm
DIMM slots816, 8-channel DDR4 RDIMM/LRDIMM
PCIe generationPCI Express slots, generation not stated in the listing5 x PCIe Gen4 x16/x8 plus 2 x PCIe Gen3
M.2 storageNot listed2 x M.2 PCIe Gen4 x4
SlimSASNone4 x SlimSAS 4i for PCIe Gen4 x4, 2 x SlimSAS 4i for SATA
NetworkingEthernet and VGA ports2 x 1GbE Intel I350-AM2 plus a management LAN
ManagementNot statedASPEED AST2500 BMC with dedicated management LAN
OCP mezzanineNone1 x OCP 2.0 PCIe Gen3 x16

Price history

  • Supermicro H12SSL-I Motherboard: lowest $545.76 on Nov 10 at Walmart.

Prices at every store

Supermicro H12SSL-I Motherboard

  • Made-in-China.comNew

    In stockShips from abroad · duties may apply

    $675.00Free shippingChecked Nov 10
    Visit Made-in-China.com
  • WalmartNew

    Availability unknownSold by Altius Technologies

    $545.76Checked Nov 10
    Visit Walmart
  • eSaitechNew

    Availability unknown

    $641.00Checked Nov 10
    Visit eSaitech
  • anafrashop.comNew

    Availability unknown

    $909.84Checked Nov 10
    Visit anafrashop.com
All 12 stores and price history →

Gigabyte MZ32-AR1 Server Motherboard

  • itpartsproNew

    In stockShips from China · duties may apply

    $730.00Checked Nov 10
    Visit itpartspro
  • Industrial Automation PartsNew

    In stockShips from Canada · duties may applyReturn policy

    $752.76Checked Nov 10
    Visit Industrial Automation Parts
All 2 stores and price history →

Specs compared

SpecSupermicro H12SSL-I MotherboardGigabyte MZ32-AR1 Server Motherboard
Form FactorATXE-ATX
RAM TypeDDR4—
Expansion SlotPCI Express—
ECC SupportYes—
ChipsetAMD—
External PortsEthernet, VGA, USB—
Number Of Memory Slots8 Memory Slots—
Maximum RAM128 GB Max RAM—
CPU support—Single AMD EPYC™ 7003/7002 Series processors
Memory type—8-Channel DDR4 RDIMM/LRDIMM per CPU
DIMM slots—16 x DIMMs
LAN ports—2 x 1 Gb/s LAN ports via Intel® I350-AM2
Show all 18 specsShow fewer specs
SpecSupermicro H12SSL-I MotherboardGigabyte MZ32-AR1 Server Motherboard
SlimSAS PCIe—4 x SlimSAS 4i connectors supporting PCIe Gen4 …
SlimSAS SATA—2 x SlimSAS 4i connectors supporting SATA
M.2 slots—2 x M.2 slots with PCIe Gen4 x4
PCIe Gen4 slots—5 x PCIe Gen4 x16 and x8 slots
PCIe Gen3 slots—2 x PCIe Gen3 x16 and x8 slots
OCP mezzanine—1 x OCP 2.0 PCIe Gen3 x16 mezzanine slot

Questions and answers

Which board is better for a virtualization host?
The Gigabyte MZ32-AR1. Its 16 DIMM slots let you populate more memory per core, and the extra PCIe Gen4 slots take HBAs and NICs without compromise. The Supermicro works for smaller hosts where 8 DIMMs are enough.
Will the Gigabyte fit my case?
Only if the case takes E-ATX. At 305 x 330 mm it is deeper than standard ATX, so check clearance for the board and for airflow over the DIMMs. The Supermicro H12SSL-I is standard ATX and fits far more chassis.
Do both support EPYC 7003?
Yes. The Gigabyte lists EPYC 7003 and 7002 support explicitly. The Supermicro is a Socket SP3 board, so confirm the BIOS revision supports the specific 7003 part you plan to install.
Which has better storage options?
The Gigabyte. Two M.2 Gen4 slots and SlimSAS connectors for NVMe and SATA cover fast local storage without add-in cards. The Supermicro relies on PCIe slots for NVMe.
Is the Gigabyte worth stepping up to?
Yes for memory capacity, PCIe Gen4 and remote management. Skip it if your chassis is ATX-only or your workload fits in 8 DIMMs, where the Supermicro is the simpler build.
Which is easier to manage remotely?
The Gigabyte, which has an ASPEED AST2500 controller and a dedicated management LAN. The Supermicro listing does not state a BMC, so verify before relying on out-of-band access.

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