RM-491S
4U Industrial rackmount chassis for single board computers. PS2 redundant power options 3x 5.25" bays, hold down bar, multiple backplane options.
RM-491M
4U Industrial rackmount chassis for motherboard (ATX). PS2 redundant power options 3x 5.25" bays, hold down bar, multiple motherboard options.
RM-431
4U Industrial Storage Chassis RM-431 for motherboards up to Extended ATX. Redundant power options, large cooling fans, hold down bar. 8x 5.25" bays.