APC NetShelter SX, Networking Rack Enclosure, 42U, Black, 1991H x 750W x 1200D mm

The APC AR3340 is a NetShelter SX rack enclosure that gives you 42U of secure, well-organized space for networking and server gear. At 1991 mm high, 750 mm wide, and 1200 mm deep, it offers enough room for deep chassis switches and high-capacity cable runs while still aligning with standard data center layouts.

Cable management features are built in from top to bottom. Wide vertical channels and large brush-sealed openings let you route copper or fiber bundles without tight bends, so moves, adds, and changes stay neat and fast. Side-to-side airflow support keeps switch ports cool by guiding air across the equipment rather than front to back, which is especially valuable for high-density top-of-rack deployments.

The enclosure ships with adjustable mounting rails that slide forward or back to match different device depths. They also include zero U accessory channels, letting you mount PDUs or cable organizers without giving up rack space. Because the frame follows the EIA-310 standard, you can install almost any 19-inch rack-mount device with confidence.

Security and serviceability go hand in hand. Quick-release side panels are lockable yet easy to remove for fast lateral access. Split rear doors reduce the clearance needed behind the rack while still opening wide enough for full-depth servers. Front and rear doors are perforated to promote airflow and are ready for standard lock inserts.

Heavy-duty castors and leveling feet support up to 1364 kg in a static environment, so you can roll the rack into position fully loaded and then lock it firmly in place. A five-year repair or replace warranty backs the enclosure, giving IT managers peace of mind in data centers, network closets, and colocation suites alike.

• 42U rack capacity
• Dimensions: 1991H x 750W x 1200D mm
• Supports up to 1364 kg static load
• Integrated high-density cable management
• Optimized side-to-side airflow management
• Quick-release, lockable side panels
• Split rear doors for easy access
• Adjustable mounting rails with zero U space for accessories
• Five-year repair or replace warranty