... ((NJ-600)) 600mm 2-layer 3-travel universal slide rail* unique universal design compatible with all height 1234U chassis, ... of chassis also compatible, using 3 stage with 3 travel* slide rail depth at about 600mm, maximum 1100mm depth after 3 ... stage full extended travel* using ultra durable stacked 2-layer slide rail design for maximum 65kg loading* package: 1 pair/box ...