Gigabyte MZ31-AR0 vs Asus KRPA-U16 Server Motherboard
Both are single-socket SP3 server boards with 16 DIMM slots and 8-channel DDR4-3200, so the choice comes down to layout and price. The Gigabyte MZ31-AR0 is $797.25 at TeciSoft as of November 3, 2026, and the Asus KRPA-U16 is $836.52 at Amazon as of November 3, 2026. Pick the Gigabyte for more PCIe slots and built-in 10GbE SFP+; pick the Asus for the standard SSI EEB size and the Aspeed AST2500 BMC with 64MB VRAM.
Today the Gigabyte MZ31-AR0 costs $39.27 less at its best price.
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Gigabyte MZ31-AR0
Choose the Gigabyte MZ31-AR0 if you need seven PCIe slots, dual 10GbE SFP+ onboard, or the lower price.
- Seven PCIe slots give room for GPUs, HBAs and NICs.
- Dual 10GbE SFP+ onboard saves a slot and an add-in card.
- SlimSAS 4i connectors suit dense SATA backplanes.
- Cheaper of the two at $797.25 at TeciSoft as of November 3, 2026.
What separates them
| Gigabyte MZ31-AR0 | Asus KRPA-U16 Server Motherboard | |
|---|---|---|
| Price (new, November 3, 2026) | $797.25 at TeciSoft | $836.52 at Amazon |
| Form factor | E-ATX UP (proprietary extended) | EEB / SSI EEB, 12" x 13" |
| PCIe slots | 7 x PCIe Gen3 x16/x8 | Fewer expansion slots; not specified as 7 |
| Onboard LAN | 2 x SFP+ 10Gb/s via Broadcom BCM57810S | No 10GbE listed |
| BMC / graphics | Remote management, works after update | Aspeed AST2500 with 64MB VRAM |
| CPU support | EPYC 7003 series | EPYC 7002 and 7003 series |
| Storage connectors | 4 x SlimSAS 4i (SATA) plus 1 x M.2 PCIe Gen3 x4 | 4 x SATA3 6Gb/s plus 1 x M.2 SATA/PCIe |
Price history
- Gigabyte MZ31-AR0: lowest $1,160.36 on Nov 3 at Orange Hardwares.
- Asus KRPA-U16 Server Motherboard: lowest $817.18 on Nov 3 at anafrashop.com.
Prices at every store
Gigabyte MZ31-AR0
- TeciSoftNew
In stockReturn policy
$797.25Observed Nov 3, 2026, 8:06 AM - AeonflyNew
In stockReturn policy
$963.30Observed Nov 3, 2026, 8:09 AM - Orange HardwaresNew
In stockReturn policy
$1,160.36Observed Nov 3, 2026, 8:06 AM - eBayPre-owned
Availability unknown
$500.00Free shippingObserved Nov 3, 2026, 8:06 AM
Also available at
- Orange HardwaresCheck price at Orange Hardwares
- aloinfousa.comCheck price at aloinfousa.com
- E Tech DevicesCheck price at E Tech Devices
Specs compared
| Spec | Gigabyte MZ31-AR0 | Asus KRPA-U16 Server Motherboard |
|---|---|---|
| Memory slots | 16 x DIMMs | Total Slots : 16 (8-channel) |
| Form factor | E-ATX UP | EEB (12"x13", 305mm x 330mm) |
| Max memory capacity | Up to 2 TB Memory Capacity (1DPC) | Maximum up to 2048GB RDIMM |
| Motherboard Socket Type | Socket SP3 | Socket SP3 |
| Motherboard Chipset | System on Chip | AMD Chipset |
| Motherboard Form Factor | EATX | EEB, SSI EEB |
| Motherboard Model | MZ31-AR0 | KRPA-U16 |
| Manufacturer | Gigabyte | ASUS |
| RAM Type | DDR4 | DDR4 |
| RAM Maximum Capacity |
What reviewers say
Gigabyte MZ31-AR0
Owner reports are split. One praises the board for running flawlessly as a rare single-CPU EPYC option, with remote management working after an update. Another reports the board failed and calls the documentation really bad.
- Runs flawlessly
- Rare single-CPU EPYC motherboard option
- Remote management works after updating
- Really bad documentation
- Board failed ("went belly up")
Asus KRPA-U16 Server Motherboard
Owner feedback on this board is limited and mostly comes from homelab and server-build forums rather than retail reviews. Buyers who run it generally value the memory capacity and BMC, and note that setup depends on the right EPYC generation and RDIMMs.
- Large DIMM count for the price class
Questions and answers
- Which is better for a GPU server?
- The Gigabyte MZ31-AR0, because it exposes seven PCIe Gen3 x16/x8 slots. The Asus KRPA-U16 lists fewer expansion slots.
- Which has better remote management?
- The Asus KRPA-U16 lists an Aspeed AST2500 BMC with 64MB VRAM. The Gigabyte's remote management works but reviewers say it needs a firmware update first.
- Do both support EPYC 7003?
- Yes. The Gigabyte lists EPYC 7003 only; the Asus lists both EPYC 7002 and 7003.
- Is the Asus worth the extra $39?
- Only if you need the standard SSI EEB fit or the AST2500 BMC. Otherwise the Gigabyte is cheaper and has more slots and 10GbE.
- Which fits a standard rack chassis?
- The Asus, at 12" x 13" SSI EEB. The Gigabyte is E-ATX UP, a larger proprietary size, so verify clearance first.
- How much memory can each take?
- Both take up to 2TB of DDR4-3200 RDIMM across 16 slots in 8 channels.