AsRock EC266D4U-2L2T Micro-ATX Rack Server Motherboard

Overview

The AsRock EC266D4U-2L2T is a micro-ATX server motherboard built around a single LGA1700 socket, targeting rack-mount and tower server builds where dual 2.5GbE networking and compact board dimensions matter more than a full-size ATX footprint. This is a bare motherboard, not a complete system — you're selecting it as the foundation for a custom NVR, edge compute node, or general-purpose rack server build where you control the CPU, memory, and storage configuration. At 2.65 lb, the board ships light enough that freight and handling costs stay predictable across multi-unit orders, a real consideration when you're speccing out a batch of identical build stations. The EC266D4U-2L2T model number designates the specific board revision — worth confirming against your BOM before ordering, since AsRock's server line carries several similarly-numbered variants with different I/O and expansion configurations.

Key Features

• Single LGA1700 Socket: Supports the current generation of Intel desktop-class server processors, giving you a straightforward upgrade path without moving to a more expensive multi-socket platform — the right call when a build doesn't need dual-CPU throughput.
• Micro-ATX Form Factor: Fits smaller 1U/2U rack chassis and compact tower enclosures where a full ATX board won't clear drive cages or airflow baffles — check your chassis clearance before committing to a micro-ATX layout.
• Dual 2.5GbE LAN (2L2T designation): Two 2.5 Gigabit Ethernet ports built into the board mean you can dedicate one NIC to management or storage traffic and the other to production network access without adding a PCIe NIC card — useful when you're already tight on expansion slots for a RAID controller or capture card.
• Server-Class Board Design: Built for sustained duty-cycle operation rather than desktop workloads, which matters if this board is going into a recorder or always-on compute appliance running 24/7.
• 2.65 lb Board Weight: Light enough to keep shipping costs down on multi-board orders, and easy to handle during chassis integration without needing a second set of hands.
• Country of Origin CN: Manufactured in China — a detail that matters for procurement teams tracking country-of-origin compliance on federal or NDAA-sensitive builds; verify current compliance documentation against your specific contract requirements before assuming eligibility.

Integration & Compatibility

Because the EC266D4U-2L2T is a bare board, plan your build around it: an LGA1700-compatible cooler (stock or low-profile for 1U/2U clearance), DDR4 or DDR5 memory (confirm which your specific revision supports before ordering), and a micro-ATX-compatible chassis with adequate airflow for sustained server loads. The dual 2.5GbE ports simplify network planning for recorder or edge-compute builds — one port can carry camera or sensor traffic while the second handles management access, reducing dependency on PoE switches or managed switch VLANs to separate traffic classes. If you're building this into a custom video recording appliance, pair it with adequate network video recorder planning around drive bays and RAID before finalizing chassis selection — our VMS architecture guide walks through compute sizing for recording workloads. For broader server motherboard options, browse the full AsRock catalog to compare socket types and LAN configurations across the product line, or check the rack server category for pre-built alternatives if a custom build isn't the right fit for your timeline.

Frequently Asked Questions

Q: What CPU socket does the EC266D4U-2L2T use?

A: The EC266D4U-2L2T uses a single LGA1700 socket, supporting current-generation Intel desktop-class processors compatible with that socket.

Q: Is the EC266D4U-2L2T a full server or just a motherboard?

A: It's a bare motherboard only — you'll need to source your own CPU, memory, storage, chassis, and power supply to build a complete system.

Q: How many network ports does the EC266D4U-2L2T have?

A: The board includes dual 2.5GbE LAN ports, as indicated by the 2L2T designation in the model number.

Q: What form factor is the EC266D4U-2L2T?

A: It's a micro-ATX board, sized to fit compact rack chassis and smaller tower enclosures compared to full ATX server boards.

Q: How much does the EC266D4U-2L2T weigh?

A: The board weighs 2.65 lb.

Q: Where is the EC266D4U-2L2T manufactured?

A: The country of origin is China (CN).

Eden Phillips

The AsRock EC266D4U-2L2T (often searched as EC266D4U 2L2T) crosses my bench whenever an integrator wants to build a compact recording or edge-compute node instead of buying a pre-configured appliance. The single LGA1700 socket and micro-ATX footprint are the two specs that define what this board is actually for — mainstream single-CPU builds in space-constrained chassis, not dual-socket density.

Technical Highlights:

• LGA1700 single socket: gives you access to current desktop-class Intel CPU generations without paying the premium for a dual-socket board you don't need for a single-node build.
• Dual 2.5GbE LAN (2L2T): two onboard 2.5 Gigabit ports let you split management traffic from production or camera traffic without burning a PCIe slot on an add-in NIC.
• 2.65 lb board weight: keeps shipping and handling costs predictable when you're ordering several boards for a standardized fleet of build stations.

Deployment Considerations:

• This is a bare motherboard — budget separately for an LGA1700 cooler, compatible memory, a micro-ATX chassis with server-grade airflow, and a PSU before this becomes a working system.
• Confirm chassis drive-bay and cooler clearance against the micro-ATX dimensions before ordering a 1U or 2U enclosure — micro-ATX boards vary in mounting hole placement across vendors.

Where the EC266D4U-2L2T earns its spot is a custom-built recording or edge server for a mid-size camera deployment — an integrator who wants dual 2.5GbE segmentation between camera VLAN and management traffic, without the cost or footprint of a full ATX dual-socket board.