4U Fiber Optic Panels are available with various designs. The 19” Rack Mountable Panels come in 4U in height. These panels are suitable for direct termination and/or splicing of fiber optic cables. Accessories include splice trays, splicing tubes, cable gland and wire management. The 4U Rack Mount Panel can terminate up to 144 fibers for ST,SC or FC connectors or 288 fibers with LC connectors.