EXFO America Inc. TK-AXS-855-DS1 TK-AXS-855 Test Kit - Base Mainframe & Module_____AXS-200 MAINFRAME (qty:1)_____Single-slot capacity Modular mainframe - Touchscreen, color, 320 x 240, TFT, 89 mm (3.5 in) - Storage: > 512 MB Internal Memory > up to 2 GB External Memory with USB