Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
For Your Every Summer RSVP, with Code: SUMMER15
Description
Supermicro Motherboard MBD-X12SPL-F-O X12SPL-LN4F C621 A LGA4189 SKT-P+ 8xDDR4 ATX RetailMPN MBD X12SPL F O Physical Stats Form Factor ATX Dimensions 12. 1" x 10" (30. 73cm x 25. 4cm) Processor Cache CPU 3rd Gen Intel Xeon Scalable processors Single Socket LGA 4189 (Socket P+) supported, CPU TDP supports Up to 270W TDP Cores Cache Up to 40 cores System Memory Memory Capacity Up to 2TB 3DS ECC RDIMM, DDR4 3200MHz Up to 2TB 3DS ECC LRDIMM, DDR4 3200MHz Up to 2TB Intel Optane Persistent Memory 200 Series, in 8 DIMM slots Memory Type 3200
MPNMBD-X12SPL-F-O
Physical Stats
Form Factor
ATX
Dimensions
12.1" x 10" (30.73cm x 25.4cm)
Processor/Cache
CPU
3rd Gen Intel Xeon Scalable processors
Single Socket LGA-4189 (Socket P+) supported, CPU TDP supports Up to 270W TDP
Cores / Cache
Up to 40 cores
System Memory
Memory Capacity
Up to 2TB 3DS ECC RDIMM, DDR4-3200MHz Up to 2TB 3DS ECC LRDIMM, DDR4-3200MHz
Up to 2TB Intel Optane Persistent Memory 200 Series, in 8 DIMM slots
Memory Type
3200/2933/2666MHz ECC DDR4 RDIMM, LRDIMM
DIMM Sizes
8GB, 16GB, 32GB, 64GB, 128GB, 256GB
Memory Voltage
1.2V
Error Detection
Corrects single-bit errors
On-Board Devices
Chipset
Intel C621A
SATA
Intel C621A controller for 10 SATA3 (6 Gbps) ports RAID 0,1,5,10
IPMI
ASPEED AST2600 BMC
Network Controllers
Dual LAN with Intel i210 Gigabit Ethernet Controller
Graphics
ASPEED AST2600 BMC
Input / Output
SATA
10 SATA3 (6Gbps) ports
LAN
2 RJ45 Gigabit Ethernet LAN ports
USB
6 USB 2.0 ports (2 rear + 4 via headers)
5 USB 3.2 Gen1 ports (2 rear + 2 via headers + 1 Type A)
Video Output
1 VGA port
Serial Port / Header
1 COM Port (1 header)
TPM
TPM Header
Expansion Slots
PCI-E
2 PCI-E 4.0 x8,
1 PCI-E 4.0 x16,
1 PCI-E 4.0 x8 (in x16 slot)3 PCI-E 3.0 x8
M.2
M.2 Interface: 1 SATA/PCI-E 3.0 x4
Form Factor: 2280/22110
Key: M-Key
System BIOS
BIOS Type
AMI UEFI
BIOS Features
ACPI 6.2
SMBIOS 3.0 or later
UEFI 2.7
Management
Software
Intel Node Manager, IPMI2.0, KVM with dedicated LAN, SPM, SSM, SUM, SuperDoctor 5, Watchdog
Power Configurations
ACPI Power Management
CPU thermal trip support for processor protection
Power-on mode for AC power recovery
PC Health Monitoring
Voltage
+1.8V, +12V, +3.3V, +5V, +5V standby, 3.3V standby, 7-fan status, Chassis intrusion header, HT, Monitors CPU voltages, System temperature, VBAT
Temperature
PECI, CPU thermal trip support
LED
CPU / System Overheat LED, UID/Remote UID, Suspend static indicator LED
Other Features
ACPI power management, ATX Power connector, Chassis intrusion detection, Chassis intrusion header, RoHS, RoT, UID, WOL
Operating Environment
Operating Temperature Range
0oC - 50oC (32oF - 122oF)
Non-Operating Temperature Range
-40oC - 70oC (-40oF - 158oF)
Operating Relative Humidity Range
10% - 85% (non-condensing)
Non-Operating Relative Humidity Range
10% - 95% (non-condensing)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1925 reviews
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Product Reviews
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
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Reviewed in the United States on December 18, 2025
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
★★★★★ 4
Quality shoe but with a slight squeak.
Size: 10 Wide, Color: Burgundy Polished Full Grain
Nice shoes with the classic Penny Loafer design. Fit was better than another brand I tried. Only reason not 5 starts is disappointment due to a slight squeak at times when walking.
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Reviewed in the United States on August 11, 2025