B-Line Eaton series open racks, 2.4" height, 5.5" length, 19" width, Steel, RCM rack mounted single sided horizontal cable manager, Plastic finger, E

Yes. The SB87019S2EW is a rack mounted horizontal cable manager built to a 19 in width, which is the standard EIA rack mounting width, and it is 2.4 in high, so it occupies a little under 2 rack spaces of vertical panel height. Depth off the rack face is 5.5 in, so allow for that in front of the rails when you are planning aisle clearance.

Single sided. The RCM horizontal manager routes cable on one face only, with the plastic fingers on that side, so it is the one to use on a two post open frame rack where you are dressing cable at the front. If you need cable managed on both the front and rear faces of the panel, a single sided unit will not do it.

The plastic fingers control bend radius, so patch cords leaving the switch or patch panel are held to a curve rather than kinked at the rack rail. That matters most on Cat6/6A copper and any fiber jumpers, where a tight bend degrades performance. Eaton also rates this finger design at 45% more cable capacity than their standard finger, so you can bundle more jumpers through one 2.4 in high panel.

No. This one is Eaton white powder coat steel with black plastic finger components. If your rack and patch panels are black, the steel body will not match. Colour is a fixed attribute on model SB87019S2EW, not an option to select.

UL is the certification carried on this cable manager, which is the line item most facility and government specs ask for on rack accessories. The exact part number to put on the submittal is SB87019S2EW.

Plan on 2U. The panel is 2.4 in high and a rack unit is 1.75 in, so it spans two mounting spaces on the rail. Between patch panels, that is the gap to leave when you lay out the rack elevation.

They do different jobs and most racks get both. This RCM unit is horizontal: it mounts between patch panels and switches to carry jumpers side to side across the rack face and hold bend radius as the cords leave the ports. Vertical managers run the full height at the side of the rack and carry the bundles up and down between those horizontal transitions. If you are only buying one, the horizontal is what keeps port level patching tidy at the panel.

The body is steel at 14 gauge, with only the finger components in plastic, so the panel itself is a structural steel part rather than an all plastic tray. Whole unit weighs 2.5 lb, so it is light to hold up one handed while you start the rack screws.