Adastra 19SS-1UD 1U 440D Rack Support Shelf

The Adastra 19SS-1UD is a 1U support shelf for standard 19" rack cabinets. It gives you a flat surface to hold equipment that has no rack ears or mounting brackets of its own, so items like amplifiers, media players or small mixers can sit safely inside your rack rather than being stacked loose.

This 440D version measures 440mm in depth, which suits cabinets with an internal depth of 600mm. The shelf mounts across the front rack rails and takes up a single rack unit (1U) of height. Rear support brackets are included and can be adjusted or removed to match how deep your gear sits and how much support it needs at the back.

We supply this as part of a wider range of Adastra support shelves. If you have a shallower cabinet, the 350D model fits 450mm deep enclosures instead. The shelf works with any equipment that needs a stable base within the rack, keeping your setup tidy and letting you make full use of the space you have.

What size cabinet does the 440D shelf fit?

The 440D shelf is suited to cabinets with an internal depth of 600mm. For 450mm deep cabinets, choose the 350D version instead.

How much rack space does it use?

It takes up a single rack unit, or 1U, of vertical space in a standard 19" rack.

Can I adjust the rear brackets?

Yes. The rear support brackets can be adjusted to match the depth of your equipment, or removed entirely if you prefer.

What is this shelf used for?

It holds equipment that has no rack mounting brackets of its own, giving items a flat, stable base inside the rack cabinet.

Does it work with any 19" rack?

Yes, it fits standard 19" rack cabinets and mounts across the front rails.