Middle Atlantic Horiz Rack 4U+5U 42D - VWM-4-5-42K-PW

Middle Atlantic VWM-4-5-42K-PW Vertical Wall Mount Rack — 9RU, 150 lb Capacity

The Middle Atlantic VWM-4-5-42K-PW is a 9-rack-unit steel wall mount enclosure built for AV, security, and networking infrastructure where floor space is constrained and professional-grade support structure is non-negotiable. At 42 inches tall and 25 inches wide with a UL-rated 150 lb load capacity, this rack handles mid-density deployments — NVRs, PoE switches, patch panels, UPS units — without the footprint of a floor cabinet. If you're spec'ing a wall-mounted security head-end or a structured wiring closet in a retail, education, or commercial environment, the VWM-4-5-42K-PW belongs on your short list.

Overview

Middle Atlantic's VWM series is a Middle Atlantic rack and enclosure line purpose-built for permanent wall installations. The VWM-4-5-42K-PW ships in a putty wrinkle powder coat finish — a neutral tone that blends into most equipment room and back-of-house environments. Manufactured in the USA and TAA-compliant, it qualifies for federal, state, and GSA procurement channels without additional paperwork. GREENGUARD certification (CSA Listed) confirms it meets low chemical emission standards — relevant for installations in occupied educational or healthcare spaces.

This unit belongs in the broader category of wall mount racks and is appropriate wherever permanent, structured infrastructure needs to be elevated off the floor but wiring access depth and real load capacity matter.

Key Features

• 9RU Total Capacity (4U + 5U Split Configuration): The dual-section 4U-plus-5U layout accommodates mixed equipment sizes in a single enclosure — pair an NVR in one section with a PoE switch and patch panel in the other. Nine rack units is enough for a complete single-closet security head-end without requiring a floor cabinet.
• 150 lb UL-Listed Load Capacity: UL-rated at 150 lbs (68 kg), this isn't a light-duty bracket — it handles dense configurations including UPS battery backup, multi-drive NVRs, and high-port-count switches. The UL listing means the load rating is verified by an independent lab, not just a manufacturer claim.
• 33.8-Inch Usable Depth: With 33.8 inches (85.9 cm) of usable depth behind the rails, full-depth servers and 2U NVRs with rear cable runs fit without modification. This is a meaningful number — many wall enclosures sacrifice depth for profile; this one doesn't.
• 12-Inch Overall Depth Profile: The 12-inch (30.5 cm) overall depth keeps wall projection manageable in corridors, closets, and back-of-house spaces where projecting hardware is a code or clearance concern. Pair it with cable management arms for clean rear terminations.
• 10-32 and Cage Nut Rail System: Dual rail formats in a single enclosure means you're not hunting for adapters — standard 10-32 threaded equipment and cage-nut-style gear both mount natively. This is the practical standard for mixed enterprise and commercial AV equipment.
• Full Solid Door with 25mm × 150mm Swing Handle: The solid steel door with integrated swing handle locks the enclosure against casual access and keeps the installation looking finished. For security equipment rooms where visual tidiness matters to the client, this beats an open-frame wall bracket.
• Steel Construction, Putty Wrinkle Powder Coat: All-steel chassis with wrinkle powder coat provides corrosion resistance and a hard surface that holds up to the kind of incidental contact an IDF or equipment room sees over years of use. This is not a sheet metal consumer enclosure.
• Forward Compatible Design: Middle Atlantic's forward-compatible architecture means future panel upgrades, fan kits, and accessories integrate without replacing the base enclosure — a meaningful consideration for long-lifecycle AV and security installations where the rack outlasts the equipment inside it several times over.
• TAA Compliant, USA Manufactured: Federal and state-funded projects (schools, government offices, public safety) can spec this unit directly. Country of origin is confirmed USA — no waiver paperwork required for government procurement.
• Product Weight 76.4 lbs / Shipping Weight 86 lbs: Budget for two-person installation. At 76 lbs before equipment load, wall anchor selection and stud-finding are real tasks — consult local building codes for the anchor schedule required at the full 150 lb rated load. Plan accordingly before the installation crew arrives.

Integration and Compatibility

The VWM-4-5-42K-PW integrates with standard 19-inch rack-mount equipment across security, networking, and AV categories. The 10-32 and cage nut rail system covers the full range of commercial rack-mount equipment. The 33.8-inch usable depth accommodates full-depth network video recorders and managed PoE switches with rear cable egress intact. The forward-compatible platform supports Middle Atlantic accessories including blanks, fan units, and cable management panels. For structured wiring applications, this enclosure pairs well with horizontal cable managers and brush panel entries mounted within the 9RU space. GREENGUARD and REACH compliance confirms it's suitable for occupied-space installations where VOC and chemical emissions are regulated.

Frequently Asked Questions

Q: Is the VWM-4-5-42K-PW TAA compliant for government procurement?

A: Yes. The VWM-4-5-42K-PW is TAA compliant and manufactured in the USA, making it eligible for federal, state, and GSA procurement without a waiver.

Q: What is the UL-rated load capacity of the VWM-4-5-42K-PW?

A: The UL-listed load capacity is 150 lbs (68 kg). This rating is independently verified by UL, not a self-declared figure.

Q: How many rack units does the VWM-4-5-42K-PW provide?

A: It provides 9 rack units total, configured as a 4U section plus a 5U section — useful for separating equipment categories within a single enclosure.

Q: What rail standard does the VWM-4-5-42K-PW use?

A: It supports both 10-32 threaded and cage nut rail mounting, covering the full range of standard commercial rack-mount equipment.

Q: Will full-depth equipment fit in the VWM-4-5-42K-PW?

A: Yes. Usable depth is 33.8 inches (85.9 cm), which accommodates full-depth servers, NVRs, and switches with room for rear cable management.

Q: Does the VWM-4-5-42K-PW come with a door?

A: Yes. It includes a full solid steel door with a 25mm × 150mm swing handle for a finished, secured appearance.

Ted Perry

The spec that matters most on the VWM-4-5-42K-PW is the 33.8-inch usable depth — that's what separates this from the shallow wall enclosures that force you to buy half-depth NVRs or route rear cables sideways out a knockout. At 33.8 inches, you're fitting full-depth commercial equipment, which keeps your equipment options open and your cable management standard.

Technical Highlights:

• 150 lb UL-Listed Load Capacity: At 150 lbs (68 kg) UL-verified, this enclosure handles a loaded NVR plus a 24-port PoE switch plus a UPS without approaching the rated limit. That margin matters over a 10-year installation life as equipment gets swapped out and loads shift.
• 9RU Split 4U + 5U Configuration: The split layout is practical for security head-ends — run your NVR in the 5U section and your switching, patch, and power in the 4U section. Clean separation of active and passive equipment makes troubleshooting faster when something goes wrong at 2 AM.
• TAA Compliant, USA Origin: For any project touching federal or state funding — school security upgrades, municipal facilities, government offices — the TAA compliance and confirmed USA manufacture on the VWM-4-5-42K-PW eliminates the procurement exception process entirely.

Deployment Considerations:

• At 76.4 lbs unloaded, this is a two-person installation minimum. Pre-identify stud locations and verify your wall anchor schedule can handle the combined enclosure-plus-equipment load before the crew arrives — the 150 lb capacity is the equipment limit, not the total wall load.
• The 12-inch overall depth works in most IDF closets, but measure your wall clearance against door swing and cable tray paths before ordering. The solid door adds projection beyond the chassis profile.

This enclosure is the right call for commercial security integrators building permanent, client-facing head-end installations in schools, retail multi-site rollouts, and municipal facilities where TAA compliance, load rating documentation, and a finished appearance all matter to the owner.