B-Line Eaton series open racks - Length 102.375 in, Width 3 in, Height 108 in - White - Aluminum

It's the RCM rack mounted vertical cable manager from the Eaton B-Line open frame rack family, not a complete rack frame. It's a 3 inch wide vertical cabling section that mounts to the rack and includes access door gates on both the front and the rear so you can dress cable from either side. If you need the open frame itself, order the rack separately and use this as the cable management channel beside it.

Yes. The mounting method is direct PDU mounting, so a vertical rack PDU attaches straight to the manager instead of eating rack units in the frame. That's the usual reason to spec a 3 inch RCM channel on an open frame row: power goes in the channel, the rack stays free for equipment.

UL is the certification carried on the SB860810D108EW. That's typically what an institutional or government MRO spec sheet is looking for on rack and cable management hardware. No fire rating or other listing is carried on it.

Finish is Eaton white powder coat over aluminum, with black plastic components for the door gates and trim. If your existing row is Eaton B-Line white, this is the same factory white powder coat, so it matches rather than approximates.

Both. There's a capacity access door gate on the front and the rear, so a tech working a back-to-back row can open the channel from either aisle without pulling the manager off the frame. That matters on hot aisle/cold aisle layouts where rear access is where the patching actually happens.

64 pounds, in a 108 inch length. That's manageable weight but awkward geometry, so plan on two people to stand it up and hold it against the rack uprights while the fasteners go in. Aluminum construction is what keeps it down to 64 pounds at that height.

It measures 102.375 in length/depth, 3 in width, 108 in height. The 3 inch figure is the channel width, which is the number that decides how much cable bundle you can dress, and 108 inches is the usable vertical run.