UniFi 800mm 42U Rack Cabinet with Perforated Front Door

A fully assembled 42U four-post cabinet built for network closets and small data centre rooms. Perforated front and rear doors, two pre-installed cooling fans and an 800 kg static load rating handle a full stack of switches, gateways, UPS units and servers — and lockable casters mean you can roll it into place, level it, and start racking the same afternoon.

The UACC-Rack-42U-800-P arrives from the factory fully assembled. There are no side panels to bolt on, no doors to hang and no posts to square up — the cabinet comes off the pallet on lockable casters, rolls to its final position, and drops onto four leveling stands. For integrators working to a fixed install window, that removes the better part of a day from the schedule.

Inside, you get the full 42U of usable height across a four-post square-hole frame built to the EIA/ECA-310-E standard, so any standard rackmount hardware, cage nut, shelf or slide rail will fit as expected. Mounting depth adjusts from a default of 607.2 mm out to 682.2 mm in 15 mm increments, giving you room for deep chassis servers and full-depth UPS units alongside shallower UniFi switches and gateways.

Airflow designed in, not bolted on

Both the front and rear doors are perforated, so cool air is drawn straight through the equipment stack rather than around it. Two 120 × 120 × 38 mm AC fan units come pre-installed to keep air moving in rooms without dedicated cooling — useful in the converted-storeroom comms rooms that most small and mid-size sites actually run on.

At 800 mm deep and 600 mm wide, there's genuine working clearance behind the posts for patch cables, PDUs and cable management, instead of the pinch you get in a 600 mm-deep cabinet once a switch stack is fully populated. Two 335 × 52.5 mm cable entry openings in the top and two in the base let you bring feeds in from either a tray or a floor void.

Built to carry a serious load

The frame is SPCC steel throughout — 2 mm posts, a 1 mm main body and 1.2 mm doors and side panels — finished in a white powder coat. Static capacity is 800 kg (1,764 lb), dropping to 320 kg (705 lb) while the cabinet is being rolled, so a fully loaded rack stays comfortably within spec.

Four leveling stands take the weight once it's positioned, and a floor anchor point lets you fix the cabinet down permanently in seismic zones or high-traffic areas. Grounding lugs are fitted as standard. If you need to expand later, the cabinet interconnect hardware lets you bay two or more units together into a single aligned row.

Locked down on every side

Security is often the weak point in a cabinet spec. Here, the front door, rear door and all four removable side panels lock — one front lock, one rear lock and eight side panel locks, with three keys in the box. Because the side panels are both removable and lockable, you get full-access servicing during a build and a sealed enclosure once the site is live.

Both doors default to a left-hand outswing and are fully reversible, so the swing can be flipped on site to suit the room rather than the other way around.

Compliance and procurement

The cabinet is NDAA compliant and carries CE and RoHS marking, alongside EIA/ECA-310-E conformance — the combination most public sector, education and federal-adjacent tenders ask for.

Choosing between the variants

This is the 800 mm-deep, perforated-door model. Ubiquiti also offers a glass front door version (UACC-Rack-42U-800-G) if the cabinet is going somewhere visible and a 1,000 mm-deep option for deeper server chassis and rear-mounted cable management. Choose perforated doors wherever passive or fan-assisted airflow matters more than appearance — which, in a comms room, is nearly always.

Key Features

• 42U of usable height in a four-post enclosed cabinet, 600 × 800 × 2,050 mm with casters fitted.
• Ships fully assembled — no build time on site.
• Two pre-installed 120 mm AC fan units for active cooling.
• Perforated front and rear doors, reversible left- or right-hand outswing.
• 800 kg static / 320 kg rolling weight capacity.
• Adjustable mounting depth from 607.2 mm to 682.2 mm in 15 mm steps.
• Four removable, lockable solid side panels for full-access servicing.
• 12 locks in total (1 front, 1 rear, 8 side panels) with three keys supplied.
• Lockable casters plus four leveling stands and a floor anchor point.
• Cabinet interconnect hardware for baying multiple racks together.
• Four 335 × 52.5 mm cable entries, two top and two bottom.
• Grounding lugs fitted as standard.
• NDAA compliant; CE, RoHS and EIA/ECA-310-E.