AsRock B650D4U3-2L2Q/BCM Micro-ATX Server Motherboard
Overview
The AsRock B650D4U3-2L2Q/BCM is a micro-ATX server motherboard built around the AMD EPYC 4004 series and AMD Ryzen desktop-class processor support, aimed at compact rack and tower server builds where board footprint is a constraint. At 9.60 x 9.60 in, it fits standard micro-ATX chassis and short-depth rack enclosures common in edge server and small-office infrastructure deployments. The board weighs 2.65 lb and ships factory-new, sourced direct from the manufacturer with no grey-market or parallel-import inventory.
Key Features
- Micro-ATX form factor (9.60 x 9.60 in): fits standard micro-ATX cases and shallow rack chassis, useful where full ATX depth isn't available in a rack or edge cabinet.
- AMD EPYC 4004 series and AMD Ryzen processor support: gives integrators a single-socket platform option for entry-level server and workstation builds without moving up to a multi-socket EPYC platform.
- Compact 2.65 lb board weight: keeps shipping and chassis-integration handling straightforward for system builders assembling multiple units.
Integration & Compatibility
Because the B650D4U3-2L2Q/BCM (often searched as B650D4U3 2L2Q/BCM) uses the micro-ATX standard, it drops into existing micro-ATX server chassis and rack enclosures without custom mounting. Confirm chassis I/O shield and standoff layout against the board before ordering a case, and verify CPU, memory, and expansion-slot compatibility against the manufacturer's qualified vendor list prior to purchase, since detailed chipset, memory, and slot specifications were not available at the time of writing.
Frequently Asked Questions
Q: What form factor is the AsRock B650D4U3-2L2Q/BCM?
A: It is a micro-ATX board measuring 9.60 x 9.60 in.
Q: What processors does the B650D4U3-2L2Q/BCM support?
A: It supports AMD EPYC 4004 series and AMD Ryzen processors.
Q: How much does the B650D4U3-2L2Q/BCM weigh?
A: 2.65 lb.
Q: Where is the B650D4U3-2L2Q/BCM manufactured?
A: The board's country of origin is China (CN).
The B650D4U3-2L2Q/BCM is one of the more compact EPYC-4004-capable boards I've had cross my bench, at 9.60 x 9.60 in — that's true micro-ATX, not a stretched server board wearing an ATX badge.
Technical Highlights:
- Micro-ATX footprint (9.60 x 9.60 in): opens up chassis options that a full ATX EPYC board can't touch, particularly in short-depth rack or compact tower builds.
- AMD EPYC 4004 series support: puts single-socket EPYC performance in reach without the footprint or power budget of a 2P platform.
- 2.65 lb board weight: light enough that chassis integration and shipping handling stay simple across multi-unit builds.
Deployment Considerations:
- Confirm memory, expansion slot, and I/O specifics directly against manufacturer documentation before finalizing a build — this listing's evidence is limited to physical dimensions and CPU family support.
- Verify chassis compatibility against the 9.60 x 9.60 in footprint before ordering an enclosure; micro-ATX standoff patterns vary slightly across vendors.
Reasonable fit for integrators building compact single-socket EPYC edge servers where a full-size ATX board won't clear the rack depth.
