Dell Latitude 5540 BTX Base, Intel Core i7-1355U (12 MB cache, 10 cores, up to 5.0 GHz) 15.6" FHD (1920x1080) Non-Touch AG, IPS, FPR, 16GB(2x8) DDR4, 512GB SSD, Integrated Graphics, AX211, BT, Cam+Mic, Backlit BG KBD, Win 11 Pro, 3Y ProSupport Rebook Dell Latitude 5480 Intel Core i5-7300U (2C/4T), 14" (1920x1080), 8GB, 256GB SSD M.2 NVME, Win 10 Pro, Backlit US KBD, 2Y, 6M battery Dell Latitude 5440, Intel Core i5-1335U (10C, 12T, 12MB cache, up to 4.6GHz Turbo), 14.0" FHD (1920x1080) Non-Touch AG, 8GB (1x8GB) DDR4, 512GB M.2 SSD, Integrated Graphics, WiFI+BT, Cam+Mic, Backlit BG KBD, FPR, Win 11 Pro, 3Y ProSupport Dell Latitude 5450, Intel Core i5-125U (12C, 14T, 12MB cache, up to 4.3GHz), 14.0" FHD (1920x1080) Non-Touch AG, 8GB (1x8GB) DDR5, 512GB M.2 SSD, Integrated Graphics, WiFi+BT, IR Cam+Mic, BG Backlit AI KBD, FPR, Ubuntu, 3Y ProSupport Dell Latitude 5450, Intel Core i5-125U (12C, 14T, 12MB cache, up to 4.3GHz), 14.0" FHD (1920x1080) Non-Touch AG, 8GB (1x8GB) DDR5, 512GB M.2 SSD, Integrated Graphics, WiFi+BT, IR Cam+Mic, BG Backlit AI KBD, no FPR, Ubuntu, 3Y ProSupport Dell Latitude 5450, Intel Core i5-135U vPro (12C, 14T, 12MB cache, up to 4.4GHz), 14.0" FHD (1920x1080) 60Hz Non-Touch AG, 16GB (2x8GB) DDR5, 512GB M.2 SSD, Integrated Graphics, WiFi+BT, IR Cam+Mic, BG Backlit AI KBD, FPR, Ubuntu, 3Y ProSupport Dell Latitude 5450, Intel Core Ultra 5 125U (12C, 14T, 12MB cache, up to 4.3GHz), 14.0'' FHD (1920x1080) Non-Touch AG, 8GB (1x8GB) DDR5, 512GB M.2 SSD, Integrated Graphics, WiFi+BT, IR Cam+Mic, BG Backlit AI KBD, FPR, Win 11 Pro, 3Y ProSupport Dell Latitude 5450, Intel Core Ultra 7 155U (12C, 14T, 12MB cache, up to 4.8GHz), 14.0'' FHD (1920x1080) 60Hz Non-Touch AG, 16GB (2x8GB) DDR5, 512GB  M.2 SSD, Integrated Graphics, WiFi+BT, IR Cam+Mic, BG Backlit KBD, FPR, Ubuntu, 3Y ProSupport Dell Latitude 5540, Intel Core i5-1335U (10C, 12T, 12MB, up to 4.6 GHz Turbo), 15.6" FHD(1920x1080) Non-Touch AG, 8GB(1x8GB) DDR4, 512GB M.2 SSD, Integrated Graphics, AX211, BT, Cam+Mic, Backlit BG KBD, FPR, Win 11 Pro, 3Y ProSupport Dell Latitude 5550, Intel Core Ultra 5 135U (12C, 14T, 12MB cache, up to 4.4GHz), 15.6'' FHD (1920x1080) Non-Touch AG, 16GB (2x8GB) DDR5, 512GB M.2 SSD, Integrated Graphics, WiFi+BT, IR Cam+Mic, Backlit BG AI KBD, FPR, Ubuntu, 3Y ProSupport Dell Latitude 5550, Intel Core Ultra 7 165U vPro(12C, 14T, 12MB cache, up to 4.9GHz Turbo), 15.6"FHD(1920x1080) AG No-Touch, 16GB (2x8GB) DDR5, 512GB M.2 SSD, Integrated Graphics, WiFi+BT, IR Cam+Mic, BG Backlit AI KBD, FPR, Ubuntu, 3Y ProSupport Dell Vostro 3520, Intel Core i3-1215U (6C, 10MB Cache, up to 4.4GHz), 15.6" FHD (1920x1080) 120Hz AG, 8GB (1x8GB) DDR4, 512GB M.2 SSD, Intel UHD Graphics, WiFi+BT, US Backlit KBD, no FPR, Ubuntu, 3Y ProSupport