Middle Atlantic AX-SXR-38 38U In-Wall Slide-Out Rotating Rack
The Middle Atlantic AX-SXR-38 is a 38U in-wall slide-out rotating rack built for installations where floor space is at a premium and rear-panel access has to happen without pulling equipment. At 20 inches deep and 19.25 inches wide, it fits standard wall cavities while still accommodating full-depth network gear, recorders, and AV processing hardware — all on 10-32 rack rails with a verified 450 lb weight capacity. TAA-compliant and manufactured in the USA, this rack meets federal procurement requirements for government and education projects. If you've been searching for this unit, note it's also commonly referenced as AX SXR 38.
Key Features
- 38U Usable Rack Space (66.5 in usable height): Thirty-eight rack units gives you room to stack an NVR, PoE switches, a patch panel, UPS, and auxiliary processing without running out of vertical space. The 66.5 in (168.9 cm) usable interior height means you're not losing significant headroom to chassis framing — a real advantage when you're integrating dense surveillance system components in a single enclosure.
- 20-Inch Usable Depth: The full 20 in (50.8 cm) of usable depth accommodates mid- to full-depth rack equipment. Standard 1U switches, patch panels, and most NVR chassis fit without shelf extenders or cable-management compromises. Verify your deepest device against this dimension before specifying.
- 450 lb Weight Capacity: At 204.1 kg rated capacity, this rack handles a fully loaded equipment bay — multiple drives in an NVR, a UPS module, dense switching gear — without flexing or shifting under load. For high-density builds common in network video recorder deployments, that margin matters.
- Slide-Out Rotating Mechanism: The defining feature of the AX-SXR series: the rack pulls outward from the wall cavity and rotates, giving you 360-degree access to rear panels, cable terminations, and power connections. This eliminates the need for access panels, secondary rooms, or wall cutouts behind the equipment — a meaningful time-saver during commissioning and service calls.
- 10-32 Rack Rails: Industry-standard 10-32 threaded rails accept cage nuts and standard rack hardware without adapters. Compatible with virtually all commercial rack-mount equipment across NVR, networking, and AV categories — no proprietary mounting systems to work around.
- TAA Compliant, USA Manufactured: The AX-SXR-38 satisfies Trade Agreements Act requirements, making it eligible for GSA Schedule purchases and federal, state, and municipal bids where domestic sourcing is mandated. Federal Ops Country of Origin is confirmed as USA.
- 19.25-Inch Width: At 19.25 in (48.9 cm) the external chassis is sized for standard rough-in wall cavities. Confirm available cavity width in your wall-framing plan before ordering — this is not a surface-mount or floor-standing unit; it requires a properly dimensioned recessed opening.
Integration and Compatibility
The AX-SXR-38 integrates into any infrastructure stack using standard 10-32 rack hardware. It's well-suited for housing the core components of a surveillance NVR stack — recorders, managed PoE network switches, patch panels, and UPS systems — within a single concealed enclosure. The 38U capacity supports mixed-use builds combining security, AV, and IT infrastructure in a common rack. For procurement officers: TAA compliance is confirmed for this SKU, supporting direct federal and SLED purchasing. Review your wall-cavity framing dimensions and load-bearing requirements with your structural team before installation — the 450 lb capacity is a rack rating, not a wall-anchor rating.
Frequently Asked Questions
Q: Is the Middle Atlantic AX-SXR-38 TAA compliant?
A: Yes. The AX-SXR-38 is confirmed TAA (Trade Agreements Act) compliant and is manufactured in the USA, making it eligible for federal, GSA Schedule, and SLED procurement where domestic sourcing is required.
Q: What is the maximum weight capacity of the AX-SXR-38?
A: The AX-SXR-38 is rated for 450 lbs (204.1 kg) of equipment weight. Note this is the rack's equipment load rating — wall anchor and structural support requirements depend on your specific installation and must be assessed separately.
Q: How much usable rack space does the AX-SXR-38 provide?
A: The AX-SXR-38 provides 38 rack units (66.5 in / 168.9 cm) of usable interior height on standard 10-32 threaded rails.
Q: What depth of equipment will fit in the AX-SXR-38?
A: The usable interior depth is 20 inches (50.8 cm), accommodating standard to mid-depth rack-mount equipment. Measure your deepest chassis before specifying — equipment longer than 20 in will not fit without modification.
Q: What type of rack rails does the AX-SXR-38 use?
A: The AX-SXR-38 uses standard 10-32 threaded rack rails, compatible with industry-standard cage nuts and rack-mount hardware across NVR, networking, and AV equipment categories.
Q: What wall cavity dimensions are required to install the AX-SXR-38?
A: The external chassis measures 71.19 in tall and 19.25 in wide. Your wall cavity must accommodate at least these dimensions plus clearance for the slide-out and rotation mechanism. Consult Middle Atlantic's installation documentation and verify framing dimensions before rough-in.
The AX-SXR-38 addresses a specific installation problem that standard wall-mount cabinets can't solve: you need 38U of rack space concealed in the wall, but you also need to reach the back of every piece of gear without a secondary access point or a second person. That slide-out rotating mechanism is the whole reason this product exists, and for the right job — a school AV/security closet, a hospital nursing station, a corporate lobby media wall — it justifies the premium over a fixed in-wall enclosure. The 450 lb capacity means you're not counting grams when you spec the equipment list.
Technical Highlights:
- 450 lb weight capacity: At 204.1 kg rated load, this rack handles a dense build — a 4U NVR with 16 drives, a 24-port managed PoE switch, a 2U UPS, and patch panels — without approaching its limit. Don't treat this as a ceiling to push against; treat it as headroom that means you won't need to recalculate when the equipment list grows.
- 20 in usable depth: Matches or exceeds most enterprise NVR and switching chassis. Gear up to 20 in deep installs flush; anything deeper requires shelf or rail extension hardware not included with this unit — verify before you finalize the equipment schedule.
- TAA + USA manufacture: Federal and SLED bids with Buy American or TAA provisions are a go with this SKU. No compliance paperwork surprises at the procurement stage.
Deployment Considerations:
- Wall cavity framing is the make-or-break variable. The external chassis is 71.19 in tall and 19.25 in wide — your rough opening must accommodate both dimensions plus rotational clearance. Coordinate with structural and finish trades early; retrofitting an undersized opening is expensive.
- The 10-32 rail system is universal, but thermal management is your responsibility. A fully loaded 38U enclosure in a sealed wall cavity with no active ventilation will accumulate heat. Plan for blanking panels on unused slots and confirm whether your equipment density requires supplemental airflow before the wall is closed.
The AX-SXR-38 is the right specification for AV/security integrations in finished commercial spaces — lobbies, conference centers, healthcare corridors — where a floor-standing rack is aesthetically unacceptable and a fixed wall cabinet makes service calls a two-person job. If your project has the wall depth and the equipment load to justify it, there's no better in-wall solution in this rack-unit range from the Middle Atlantic rack and enclosure line.
