Product description

What “4U” Means

• The “U” stands for rack unit, a standard measure for the height of equipment that goes into server/network racks. Wikipedia+2C&T Solution Inc. | 智愛科技股份有限公司+2

• 1 U = 1.75 inches (44.45 mm). Wikipedia

• So, 4U = 4 × 1.75 in = 7 inches (~177.8 mm) of vertical rack space. Accio+1

Typical Description / Features of a 4U Data Cabinet

Based on standard products and common spec sheets, a 4U data cabinet usually has:

1. Form Factor & Mounting:

   • Designed to support 19″ rack equipment (patch panels, switches, small servers). Technerve Kenya+2Tronik+2

   • Often wall-mountable, although there are floor- or free-standing 4U cabinets. Supreme Networks

2. Construction:

   • Made from cold-rolled steel (or similar strong sheet metal) for durability. Tech Wizard Solutions+1

   • Powder-coated finish (commonly black) to resist corrosion. MTech

3. Doors & Panels:

   • Lockable front door, often with tempered or perspex (acrylic) window so you can see inside. Tech Wizard Solutions+1

   • Side panels that are removable and lockable — helps for access and security. Tronik

4. Cable Management:

   • Cable entry points at top, bottom, and/or rear — for routing network and power cables. Tech Wizard Solutions+1

   • Often has gland plates or knockouts for clean cabling. Supreme Networks

5. Ventilation / Cooling:

   • Vented side panels in many models to allow airflow. Tech Wizard Solutions

   • Some cabinets support adding fans (e.g., 120 mm) at the top. Tech Wizard Solutions

6. Mounting Rails:

   • Adjustable 19″ mounting rails inside, so you can align your gear properly. Tech Wizard Solutions+1

   • These rails might be depth-adjustable to accommodate different equipment. Technerve Kenya

7. Load / Weight Capacity:

   • Many 4U cabinets support loads in the range of 60 kg (for wall-mount models). GattS Tech

8. Security:

   • Lockable doors (front, sometimes side) with keys included. Tech Wizard Solutions

   • Some have 2-point or 3-point locking mechanisms for added security. Supreme Networks

9. Protection Rating:

   • Indoor cabinets often have IP20 rating (i.e., protection from solid objects, but not water). GattS Tech

   • Outdoor versions (if available) might have higher IP ratings (e.g., for dust/water protection). TDK+1

10. Accessories:

    • May come with power distribution units (PDUs).

    • Possible support for shelves/trays to mount non-rack gear.

    • Some have grounding / earthing points