Middle Atlantic Vented Cantilever Utility Rackshelf 3 Space 17.75IN. D - U317

Middle Atlantic U317 3U Cantilever Utility Rack Shelf

Overview

The Middle Atlantic U317 is a 3U (5.25 in.) cantilever rack shelf designed for standard 19-inch EIA racks. At 17.75 in. of usable depth and a 60 lb. weight capacity, the U317 handles heavier AV gear, DVRs, NVRs, and rack-mounted appliances that need a solid fixed platform rather than a sliding tray. The two-point front-rail mount keeps installation clean — no rear rail required, which makes it viable in open-frame racks or enclosures with limited rear rail clearance. If you're racking a component that doesn't have its own ears, this shelf is the practical fix.

Compatibility

Fits any standard Middle Atlantic EIA 19-inch rack enclosure or open-frame rack — including the ERK, BGR, WRK, and MFVWR series. The 19 in. overall width and standard EIA hole spacing make it broadly compatible with third-party 19-inch racks from Chief, Middle Atlantic, Belden, and other rack accessory ecosystems. The 3U opening accommodates components up to approximately 5.25 in. tall; deeper equipment up to 17.75 in. sits fully supported. The 60 lb. capacity covers most NVRs, DVRs, media converters, and rack-mount UPS units in the under-30 lb. range with margin to spare — consult your component's published weight before loading near the limit. Not intended for sliding-drawer applications; this is a fixed cantilever shelf only.

Installation Notes

Mounts at two points on the front rack rails — no rear rail attachment. Verify your rack's front-rail hole spacing matches standard EIA 19-inch before ordering. Overall depth including mounting flange is 17.86 in.; confirm your enclosure has at least that much interior depth clearance. Shipping weight is 9.55 lbs., so factor that into total rack weight calculations for floor-load or wall-mount enclosure planning. Package ships as a single unit (qty 1).

What's in the Box

• 1x U317 cantilever rack shelf