AsRock 3U8G+/C621 3U Rackmount Server Barebone

The AsRock 3U8G+/C621 is a dual-socket LGA3647 server barebone built on the Intel C621 chipset, sized for 3U rack deployment in server rooms and data closets supporting VMS recording, analytics processing, or general enterprise compute. At roughly 93.4 lb and 42.60 x 25.32 x 16.54 in (L x W x H), this is a full-depth chassis — confirm rack depth and rail compatibility before ordering, since a unit this long won't fit shallow cabinets. Manufactured in Taiwan, the 3U8G+/C621 ships as a barebone, meaning CPUs, memory, storage, and OS are added by the integrator to match the target workload.

Overview

Dual LGA3647 sockets put this platform in the same class as Intel Xeon Scalable server builds — the sort of headroom an integrator reaches for when a project calls for a dedicated recording or analytics server rather than a repurposed desktop. The 3U form factor balances rack density against airflow and drive-bay room, a common tradeoff versus 1U or 2U chassis when a deployment needs more internal expansion capacity. If you're speccing a network video recorder platform or a compute node for a VMS cluster, the 3U8G+/C621 belongs in that conversation.

Key Features

• Dual Socket LGA3647: supports two Intel Xeon Scalable processors, giving multi-camera VMS or analytics workloads room to scale cores without a chassis swap.
• Intel C621 Chipset: the server-grade chipset pairs with LGA3647 for validated memory and PCIe lane support — the foundation integrators expect under a production recording server.
• 3U Rack Form Factor: fits standard 19-inch rack cabinets alongside PoE switches and NVR appliances in the same enclosure.
• 93.41 lb Chassis Weight: plan rail-kit and rack-frame load ratings accordingly — this is a heavy-duty unit, not a lightweight pull-out chassis.
• 42.60 x 25.32 x 16.54 in Footprint: a full-depth chassis — measure cabinet clearance before racking, especially in shallow network closets.
• Taiwan Manufacture: country-of-origin documentation is available for procurement teams tracking supply chain provenance on server hardware.

Integration & Compatibility

As a barebone chassis, the 3U8G+/C621 is built out with customer-selected CPUs, RAM, and drives to match the target application — whether that's a VMS recording server, an analytics appliance, or general enterprise compute. Review AsRock's own server line for a smaller or larger rack unit if 3U doesn't match your cabinet plan.

Frequently Asked Questions

Q: What CPUs does the 3U8G+/C621 support?

A: It uses dual LGA3647 sockets built on the Intel C621 chipset, supporting Intel Xeon Scalable processors compatible with that socket and chipset generation.

Q: How much does the 3U8G+/C621 weigh?

A: The barebone chassis weighs approximately 93.41 lb — factor this into rail and rack-frame load planning.

Q: What are the dimensions of the 3U8G+/C621?

A: 42.60 x 25.32 x 16.54 inches (L x W x H), a full-depth 3U rackmount chassis.

Q: Where is the 3U8G+/C621 manufactured?

A: Taiwan.

Marty Allison

The 3U8G+/C621 crosses my desk when a project needs dual-socket LGA3647 headroom in a rack that isn't fighting for 1U or 2U space. This is a barebone, so what you get out of it depends entirely on the CPUs and drives you populate it with.

Technical Highlights:

• Dual LGA3647 / Intel C621: two-socket support on a validated server chipset means you're not stuck on single-socket compute ceilings when a VMS or analytics workload grows.
• 3U Form Factor: more internal room than a 1U or 2U chassis for drive bays and airflow, at the cost of rack density — a fair tradeoff for a dedicated recording or compute node.
• 93.41 lb / 42.60 x 25.32 x 16.54 in: this is a full-depth, heavy chassis — verify your cabinet depth and rail load rating before it shows up on a loading dock.

Deployment Considerations:

• Because it ships as a barebone, budget separately for CPUs, memory, storage, and OS licensing — the 3U8G+/C621 price reflects chassis and platform only.
• Full 42.6-inch depth won't clear every rack — measure before you commit cabinet space, particularly in retrofit network closets.

I'd spec the 3U8G+/C621 for a dedicated on-prem VMS recording server or analytics compute node where dual-Xeon headroom matters more than saving a rack unit of space.