AsRock 2U4N-F/C621-M3 2U Rackmount Multi-Node Server Barebone

Overview

The AsRock 2U4N-F/C621-M3 is a 2U rackmount server barebone built around AsRock's C621 chipset platform, configured to house dual Intel Xeon Scalable processor sockets. This is a multi-node ('4N') chassis design — a single 2U enclosure that consolidates four independent dual-socket server nodes into one rack slot, which matters directly to anyone planning density-driven deployments such as VMS recording farms, virtualization clusters, or analytics processing racks where rack unit budget and power distribution efficiency drive the whole design. At 97.16 lb and 37.40 x 24.80 x 10.24 in (L x W x H), this is a deep-chassis unit — confirm rail and cabinet depth before ordering, since 37.4 inches exceeds many shallow network racks. The 2U4N-F/C621-M3 ships as a barebone: chassis, backplane, and node boards are provided, with CPUs, memory, storage, and networking cards added at integration time.

Key Features

• 2U4N Multi-Node Architecture: Four dual-socket Xeon nodes share one 2U chassis and shared power/cooling infrastructure, which cuts rack unit consumption roughly 4x versus deploying four standalone 1U or 2U servers — a meaningful factor when colocation space or rack budget is the constraint driving the build-out.
• Dual Intel Xeon Socket Per Node: Each node supports two Xeon Scalable processors, giving you core-count headroom for VMS transcoding, deep-learning analytics inference, or hypervisor consolidation without needing to spread workloads across more physical chassis.
• C621 Chipset Platform: The C621 platform is Intel's server-grade chipset paired with Xeon Scalable CPUs, providing the PCIe lane count and memory channel support that dense storage and GPU/analytics add-in cards need — relevant if you're planning to add NVMe RAID or inference accelerators per node.
• 2U Rack Form Factor: Standard 2U height means it drops into any commercial rack cabinet using conventional rail kits, keeping it compatible with existing data center or server room infrastructure rather than requiring specialized enclosures.
• 97.16 lb Chassis Weight: This is a fully-loaded multi-node chassis weight class — plan for rack cabinet weight capacity and two-person handling during installation, particularly if you're populating higher rack positions.
• 37.40 x 24.80 x 10.24 in Footprint: The 24.80 in width and 37.40 in depth are larger than standard 1U/2U single-node servers because the chassis houses four independent node boards — measure cabinet depth and rear cable clearance before racking.
• Taiwan Manufacturing Origin: Built in Taiwan (TW), consistent with AsRock's primary manufacturing base for its server and motherboard lines.

Integration & Compatibility

Because the 2U4N-F/C621-M3 is a barebone platform, integration work centers on populating each of the four nodes with Xeon Scalable CPUs, ECC memory, and storage/networking to match the workload — VMS recording, virtualization hosts, or GPU-assisted analytics. Architects planning a rack build alongside this platform should also review network video recorders if this chassis is being positioned as a custom NVR backend, and server and compute hardware for comparable rackmount options in the same class. For power distribution planning across four independent nodes, consulting a power and infrastructure planning guide before finalizing PDU and UPS sizing is worth the time. Pair the chassis with network switches sized for four nodes' worth of aggregate throughput, and browse the broader AsRock server lineup for single-node alternatives if full 4-node density isn't required for your deployment.

What's in the Box

Evidence available does not confirm exact included accessory counts for this barebone chassis, so package contents are not listed here to avoid guessing.

Frequently Asked Questions

Q: What does '2U4N' mean on the 2U4N-F/C621-M3?

A: It indicates a 2U rackmount chassis housing four independent server nodes, each with its own dual-socket motherboard, sharing the same 2U enclosure and power infrastructure.

Q: Does the 2U4N-F/C621-M3 include CPUs and memory?

A: No. This is a barebone platform — the chassis, backplane, and node boards are included, but Xeon processors, memory, storage, and networking cards are added during integration.

Q: How much does the 2U4N-F/C621-M3 weigh?

A: 97.16 lb for the chassis as shipped.

Q: What are the dimensions of the 2U4N-F/C621-M3?

A: 37.40 x 24.80 x 10.24 in (L x W x H). Confirm rack cabinet depth before ordering, since this exceeds shallow-depth rack enclosures.

Q: Where is the 2U4N-F/C621-M3 manufactured?

A: Taiwan (TW).

James Everett

The 2U4N-F/C621-M3 is one of those platforms that only makes sense once you've hit a rack density wall. Four dual-Xeon nodes in a single 2U slot means you're getting the compute equivalent of four separate servers without spending four rack units to get there.

Technical Highlights:

• 4-Node C621 Layout: Each of the four nodes runs its own dual-socket Xeon Scalable pair, so you can isolate workloads per node (recording on one, analytics inference on another) without cross-node contention.
• 97.16 lb Chassis: That's a fully-populated-class weight even before you've added drives and CPUs — budget for it in your rack's static load rating, not just the U-space.
• 37.40 in Depth: This is a deep chassis. I've seen 2U4N platforms get ordered for cabinets that only clear 30 inches — measure your rack before this ships.

Deployment Considerations:

• Because this is a barebone, plan your CPU, RAM, and storage sourcing before it arrives — there's no compute inside until you populate it.
• Shared power and cooling across four nodes means a single PSU or fan failure has a larger blast radius than a standalone single-node 2U server — check redundant PSU configuration options before committing to a hyperconverged rack design around this chassis.

This is the right call for a colocation build or a VMS/analytics compute rack where you're standing up four independent Xeon nodes and don't have four spare rack units to give up — not the right call if you just need one dual-socket server and don't need the multi-node density.