The ASRock Rack EC266D4-4L is an ATX server motherboard for single Intel Xeon E-2400 or Pentium Gold G7400-series builds, with DDR5 ECC UDIMM support, IPMI remote management, and four 1GbE ports—suited to server and infrastructure builds that prioritize manageability and reliable wired connectivity.
Recommended For
- Small-business server builders who want a single-socket platform for file sharing or other entry-level server workloads, with ECC memory support and remote management.
- NAS and data-storage builders who need multiple SATA connections for a multi-drive system and want a full-size ATX board with room for add-in cards.
- Home-lab operators who want to manage a server remotely and run single-socket workloads such as a small virtualization host, test server, or network services machine.
- Workstation or server builders who need several PCIe expansion slots for storage or networking cards, and can work within a single-socket system.
Spec Summary
| Attribute | Value |
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| Best For | Single-socket server builds using supported Intel Xeon E-2400 or Pentium Gold processors, ECC DDR5 memory, and multiple 1GbE network connections |
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| Processor And Platform | Single LGA 1700 socket for Intel Xeon E-2400 series or Pentium Gold G7400/G7400T processors; Intel C266 chipset; CPU TDP listed as 95W |
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| Memory Configuration | Four 288-pin DDR5 DIMM slots, supporting DDR5-4400 ECC memory up to 128GB |
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| Expansion And Storage | Four PCIe slots: PCIe 5.0 x16 and x8, plus two PCIe 4.0 x4; the x16 slot switches to x8 when the x8 slot is populated. Two M-key PCIe 4.0 x4 M.2 sockets support 2230, 2242, 2260, and 2280 drives |
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| Networking And Rear I/O | Four Intel I210 Gigabit Ethernet ports (10/100/1000 Mbps); rear I/O includes four RJ45 ports, two USB 3.2 Gen 1 Type-A ports, one COM port, and one D-Sub port |
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| USB Headers | Two USB 3.2 Gen 1 headers provide four USB ports, plus one USB 2.0 header for two ports |
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| Video And Firmware | Onboard Aspeed AST2600 video chipset; AMI 256Mb SPI Flash ROM with ASRock Rack Instant Flash support |
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| Board Headers And System Connections | Includes ATX main-power and three 8-pin ATX 12V connectors; chassis and system-panel, VGA, speaker, buzzer, seven fan, thermal sensor, TPM, SGPIO, SMBus, PMBus, IPMB, front LAN LED, NMI, and clear-CMOS connections |
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| Form Factor And Dimensions | ATX motherboard measuring 12.0 × 9.6 inches |
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| Model Identifiers | ASRock Rack EC266D4-4L |
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