Introduction: 2U 400mm Cantilever Rack Shelf (SHELF2U400BLK)
The 2U Cantilever Rack Shelf, 400mm Deep, Black Steel (SKU: SHELF2U400BLK) is a practical, heavy‑duty accessory for standard 19" server and network racks. Designed for front‑fix installation, this shelf provides a compact platform for non‑rackmount devices such as modems, small switches, consoles, patch panels and other peripherals. Constructed from steel and finished with a black powder coat, it balances durability with a low profile, making it a useful addition to comms cabinets, server rooms and home lab racks where flexibility and space efficiency matter.
Key features at a glance
- 2U rack height— occupies only two rack units, conserving valuable rack space for larger equipment.
- 400 mm usable depth— deep enough for most small to medium devices without encroaching on rear clearance.
- Front‑fix cantilever mounting— simple installation that secures to the front mounting rails and provides a stable support surface.
- Steel constructionwith a black powder‑coated finish — robust and good looking in professional environments.
- Compatibility— designed to fit standard 19" racks (482.6 mm mounting width).
Detailed specifications and practical benefits
This section pulls together the technical details and translates them into practical benefits to help you decide whether the SHELF2U400BLK is right for your setup.
- Manufacturer / Brand:All‑Rack
- Supplier Code:ITM001149
- SKU:SHELF2U400BLK
- Rack Units:2U
- Depth:400 mm usable depth
- Mounting:Front‑fix cantilever
- Material:Steel
- Finish / Colour:Black powder‑coated
- Compatible Width:Fits standard 19" racks (482.6 mm)
- Load Capacity:INSUFFICIENT DATA — supplier does not state official rating
- Weight:INSUFFICIENT DATA
- Space efficiency:Using only 2U, the shelf gives you a dedicated surface without taking the footprint of larger chassis or drawers.
- Flexible device support:The 400 mm depth is suitable for a wide range of small devices that aren’t designed for rackmounting — from console devices and network appliances to peripherals such as power strips and modems.
- Simple installation:Front‑fix cantilever mounting streamlines fitting into existing racks because it secures to the front mounting points and leaves rear access clear.
- Durability:Steel construction and powder coating protect the shelf from wear, minor knocks and humidity common in comms rooms.
- Clean, professional appearance:The black finish integrates well with most rack equipment for a tidy installation.
Use cases and scenarios
The SHELF2U400BLK is geared toward environments where an accessible, stable platform for non‑rackmount devices is needed. Below are specific scenarios where this product excels.
In small comms cabinets and edge racks, you often need a place to put a modem, small unmanaged switch, or a patch panel termination area without dedicating 1U/2U for a full chassis. The cantilever shelf offers a dedicated surface for harnesses, cable management and small devices while keeping the equipment within the rack footprint.
Testing and lab setups frequently require temporary or non‑rackmount gear. The shelf provides a secure platform for devices being monitored or configured, and because it mounts at the front it allows easy access for connection changes and instrumentation.
Control units, small media players, controllers and other AV hardware that do not have rack ears can be stored on the shelf. Its discreet appearance helps maintain a neat rack front and ensures sensitive equipment is off the floor and protected.
Small UPS modules, power strips and KVM consoles that sit awkwardly in racks can be stabilized on this shelf. It’s particularly useful where airflow or cable routing requires devices to be raised above the rack base.
Comparisons with similar products
Cantilever shelves are common in the market, but choices vary by depth, mounting type, material and rated load. Here’s how the SHELF2U400BLK stacks up against typical alternatives.
Deeper shelves (500–600 mm) provide more room for larger devices but consume more vertical clearance and can obstruct rear cabling. The 400 mm depth of the SHELF2U400BLK represents a middle ground that suits many small appliances and keeps the rack compact.
Tray or perforated shelves often have venting to assist airflow for powered equipment. The SHELF2U400BLK is ideal for non‑powered or low‑power peripherals; if you intend to mount active, heat‑generating devices you should consider perforated or vented options and confirm load and cooling requirements.
Full‑depth fixed shelves offer higher load capacities and can support heavier equipment, but they are bulkier and more expensive. The cantilever 2U shelf is a lighter, more economical solution for lighter gear where convenience and cost are priorities.
An important differentiator in this category is the manufacturer‑stated load rating. The supplier data for SHELF2U400BLK does not include an official load rating; comparable 2U/400 mm cantilever shelves on the market typically quote maximum loads in the ~15–25 kg range. Treat this only as a market reference: verify the exact load capacity, installation instructions and any required mounting reinforcement with the supplier or official datasheet before placing heavy equipment on the shelf.
Customer testimonials and feedback
No formal customer reviews are provided with the supplier data for this SKU. Below are representative types of feedback based on common user experiences with similar 2U cantilever shelves; these are illustrative themes rather than verbatim customer quotes.
- Positive feedback:Users often praise the simplicity of installation and the neat appearance in a populated rack. For small offices and labs, customers appreciate the ability to accommodate devices without buying dedicated rackmount chassis.
- Constructive feedback:Some buyers note the importance of checking load ratings and suggest adding supplemental mounting or limiting the weight of devices to avoid sagging over time.
- Practical tips from installers:Installers recommend mounting the shelf at a height that balances accessibility with cable routing, and using Velcro straps or zip ties for light devices to prevent movement during servicing.
Buying considerations and final checks
Before purchasing the SHELF2U400BLK, consider these practical points:
- Confirm compatibility with your rack: although designed for standard 19" racks, check hole pattern (square/round) and rail depth to ensure proper fit.
- Verify load rating: the supplier data does not list an official maximum load. Contact the supplier (All‑Rack, supplier code ITM001149) for the datasheet and exact load and weight specifications.
- Assess the devices you plan to place on the shelf: for heat‑producing or heavy devices, choose an alternative vented or rated shelf if necessary.
- Installation details: follow UK installation guidance and secure the shelf to rated rack mounting points. Check CE/UKCA marking requirements for your market with the supplier if needed.
- Price and value: with a suggested retail price of GBP 26.99, the shelf is positioned as an economical option for adding utility and flexibility to racks where only a small mounting surface is required.
Conclusion: why choose the SHELF2U400BLK
The 2U 400mm Cantilever Rack Shelf (SHELF2U400BLK) is a versatile, cost‑effective accessory for anyone managing limited rack space or needing an accessible platform for non‑rackmount equipment. Its compact 2U footprint, 400 mm usable depth and front‑fix cantilever mounting make it a sensible choice for comms cabinets, server rooms, AV racks and lab environments. Built from steel with a black powder‑coated finish, it combines durability with a professional look.
However, ensure you obtain the official datasheet and confirm load ratings and installation instructions from the supplier (All‑Rack, supplier code ITM001149) before mounting heavy or heat‑generating equipment. When matched to appropriate devices and installed correctly, this shelf offers a neat, practical solution that helps maximise rack utility without a large investment.
