TRIPP LITE SREXTENDER RACK ENCLOSURE SERVER CABINET EXTENSION FRAME 42U / 48U. Tripp Lite SREXTENDER rack accessory. SREXTENDER rack extension frame allows you to increase mounting depth of standard rack enclosure by 8-in. Without replacing enclosure and reinstalling existing equipment. SREXTENDER is compatible with SmartRack 42U and 48U enclosures. Ideal for hosting, colocation, and server […]