StarTech RK4OD 4U 2-Post Open Frame Desktop Rack for 19-Inch IT Equipment

Overview

The StarTech RK4OD is a compact, 4U open-frame 2-post desktop rack designed for environments where you need to mount standard 19-inch IT equipment without committing floor space to a full enclosed cabinet. At 9.3 in tall, 19.8 in wide, and 11.6 in deep, this rack fits on a workbench, credenza, or server shelf — making it practical for small wiring closets, edge network nodes, security head-end enclosures, and compact AV or surveillance equipment consolidations. The steel construction holds up to 88.2 lb (40 kg) of gear, which is enough headroom for a small NVR, a PoE switch, and a patch panel without concern.

If you're building out a network video recorder stack or a compact PoE switch deployment where a full 42U rack would be overkill and a shelf would be unsecured, the RK4OD fills that gap cleanly. It conforms to EIA/ECA-310-E, which means any standard 19-inch rackmount equipment will fit and align correctly — no guessing, no shimming.

Key Features

• 4U Rack Height: Four rack units of usable space in a 9.3-inch physical footprint. That's enough for a 1U NVR, a 1U PoE switch, and still have room for a 2U appliance or patch panel — practical for a small surveillance head-end without over-building the enclosure.
• 88.2 lb (40 kg) Weight Capacity: Steel construction rated to support 40 kg means you can load this with real IT hardware — not just lightweight accessories. A typical 1U NVR runs 8–12 lb; a managed PoE switch another 4–8 lb. There's genuine margin here for fully equipped gear.
• Open Frame 2-Post Design: No side panels means unrestricted airflow around your equipment — particularly important for power supplies and NVRs running 24/7. Cable access from any angle also simplifies patching and future changes without disassembling an enclosure.
• Maximum Mounting Depth of 11.4 in (29.0 cm): This is the critical measurement to check before ordering. Equipment deeper than 11.4 inches won't have rear post support. Most 1U managed switches and shallow NVRs fit; full-depth 1U servers typically do not. Measure your deepest device first.
• EIA/ECA-310-E Compliance: The industry-standard rack specification ensures consistent hole spacing, U marking, and mounting rail geometry. Any gear marked as 19-inch rackmount will align and mount without adapters or custom brackets.
• Steel Construction in Black: Commercial-grade steel keeps the frame rigid under load and presents cleanly in customer-facing or semi-visible installs. The black finish blends into most equipment room aesthetics without standing out.
• Freestanding Design: No wall anchors or rack bolts required. Position it on any flat surface and it's ready to load. For temporary deployments, staging environments, or locations where wall-mount isn't an option, this is faster to commission than any enclosed cabinet.
• Lifetime Warranty: StarTech backs the RK4OD with a lifetime warranty — a meaningful data point when selecting infrastructure components that may outlast the equipment they hold.

Integration and Compatibility

The RK4OD accepts any standard 19-inch rackmount equipment conforming to EIA/ECA-310-E — the same standard used by virtually all commercial IT, networking, and security hardware. This includes 1U and 2U NVRs, managed and unmanaged PoE switches, KVM drawers, patch panels, and rackmount UPS units, provided they fall within the 11.4-inch maximum mounting depth. If you're pairing this with deeper equipment such as full-depth servers or high-density storage appliances, verify the depth spec against your specific model before ordering — the RK4OD's 11.4-inch rear-post distance is the hard constraint.

For integrators building out a surveillance system head-end on a tight footprint, this rack pairs naturally with shallow 1U NVRs and compact managed PoE switches. Consult a rack and enclosure buying guide if you're unsure whether a 4U desktop form factor fits your equipment list — matching rack depth and U count to actual gear before installation avoids costly reconfigurations.

Frequently Asked Questions

Q: What is the maximum equipment depth the RK4OD can support?

A: The RK4OD has a maximum mounting depth of 11.4 inches (29.0 cm). Equipment deeper than this will not have rear post support and should not be mounted in this rack. Always verify the depth of your deepest device before purchasing.

Q: How much weight can the RK4OD hold?

A: The RK4OD is rated to support up to 88.2 lb (40 kg) of equipment — sufficient for a typical combination of a 1U NVR, a 1U PoE switch, and additional 1U accessories.

Q: Does the RK4OD need to be bolted to a wall or surface?

A: No. The RK4OD is a freestanding desktop design that sits on any flat surface without wall anchoring or floor bolting. It is not designed for wall-mount or floor-standing installation.

Q: Is the RK4OD compatible with standard 19-inch rackmount equipment?

A: Yes. The RK4OD conforms to EIA/ECA-310-E, the industry standard for 19-inch rackmount equipment. Any compliant 1U or 2U device will mount correctly without adapters, provided it does not exceed the 11.4-inch depth limit.

Q: What warranty does the RK4OD carry?

A: StarTech backs the RK4OD with a lifetime warranty.

Q: Can the RK4OD hold a full-depth 1U server?

A: Typically no. Full-depth 1U servers are usually 26–28 inches deep, well beyond the RK4OD's 11.4-inch maximum mounting depth. This rack is best suited to shallow equipment such as compact NVRs, managed PoE switches, patch panels, and similar short-depth devices.

Jerry Tildsen

The RK4OD's 11.4-inch maximum mounting depth is the spec I always lead with when someone asks about this rack. It is the defining constraint — and in my experience it catches integrators off guard more often than the 4U height or the 88.2 lb weight rating. If your NVR or switch is shallow, this rack works well; if you are reaching for deeper appliances, you need a different enclosure entirely.

Technical Highlights:

• 11.4-Inch Max Depth: Purpose-limits this rack to shallow equipment — compact NVRs, 1U PoE switches, and patch panels typically clear this; full-depth 1U servers at 26–28 inches do not. Know your gear's depth before specifying.
• 88.2 lb (40 kg) Rated Capacity: Steel construction gives this small frame genuine load margin. A fully populated 4U load with a 1U NVR (~10 lb), a 1U switch (~6 lb), and accessories still leaves significant headroom.
• EIA/ECA-310-E Compliance: Standard rail geometry means no custom brackets, no shimming, no guesswork — every compliant 19-inch device drops in correctly on the first attempt.

Deployment Considerations:

• The freestanding desktop design means installation is fast — place on a flat surface and load immediately. No anchoring hardware or floor space commitment required, which makes this practical for temporary staging environments or edge locations.
• At 9.3 inches tall and 11.6 inches deep, the RK4OD's own footprint is small, but add your deepest mounted device at 11.4 inches and the full assembly still fits on a standard 24-inch work surface with clearance to spare.

The RK4OD is the right call for a compact surveillance head-end — specifically a single-location install where you're consolidating a shallow 1U NVR and a compact PoE switch and need them secured, aligned, and accessible without the overhead of a full enclosed cabinet.