Middle Atlantic Products Middle Atlantic Adjustable Split Rear Rackrail

In a busy server room or AV rack, getting equipment mounted at the correct depth can be a constant struggle. The Middle Atlantic Products Adjustable Split Rear Rackrail (5AR14-26) solves this by giving you a pair of adjustable rear rails that fit your rack frame. Each rail is 44U high, made from sturdy steel with a black powder coat finish, and features square holes for cage nuts. The split design lets you adjust the depth independently, so you can accommodate deep servers, shallow patch panels, or anything in between. It bolts directly to the rear of compatible Middle Atlantic racks, ensuring a secure and stable mounting surface for all your gear.

Key specifications

• Rack Units (RU) Height: 44U
• Mounting Hole Type: Square Hole (for cage nuts)
• Material: Steel
• Finish: Black Powder Coat
• Adjustability: Adjustable Depth
• Mounting Position: Rear of Rack
• Compatibility: EIA-310-D Compliant Racks, Middle Atlantic MRK/WRK/SR Series
• Included Components: Pair of Rackrails (Left & Right)
• Hole Spacing: Standard 1.75" (44.45mm) per RU
• Application: Server, Network, AV Equipment Mounting
• Installation Type: Bolt-on to Rack Frame
• Color: Black
• Product Type: Rackrail
• Corrosion Resistance: Yes (due to powder coat)
• Certifications: RoHS Compliant

Why choose it

This rackrail set gives you the flexibility to mount equipment at the exact depth you need, without compromising on strength or durability. The steel construction and powder coat finish ensure long-lasting performance, while the square hole design accepts standard cage nuts for secure mounting. The split rear rail design is particularly useful when you have a mix of equipment depths or need to service components from the rear of the rack.

Ideal use cases

• Server rooms with deep servers requiring rear support
• AV racks with varying equipment depths
• Network cabinets needing adjustable rear mounting for patch panels and switches
• Upgrading existing Middle Atlantic racks to improve cable management and equipment access

Good to know

This product includes one pair of adjustable split rear rackrails (left and right). It is designed to bolt onto the rear of EIA-310-D compliant rack frames, specifically the Middle Atlantic MRK, WRK, and SR series. The rails are RoHS compliant and provide corrosion resistance thanks to the black powder coat finish. Always verify your rack model compatibility before ordering.