ThinkBook 15 Reliability tested on 12 MIL-STD-810H Methods and 22 Procedures | Body Material: Aluminium (Top) | Surface Treatment: Anodizing sandblasting | Built to withstand rugged usage and can handle accidental knocks, drops, and even spills Processor: 12th Gen Intel Core i5-1235UG4 processor | 10 Cores | 12 Threads | Speed Upto 4.4 Ghz | 12 Mb Cache | Memory: 16GB DDR4 3200 MHz, dual-channel capable upgradable up to 40GB | Storage: 512GB SSD M.2 Upgradable up to 1TB Operating System: Pre-loaded Windows 11 Home SL with lifetime Validity | Pre-installed software: Microsoft Office Home & Student 2021 Display: 15.6 (39.62 cm) FHD Antiglare | Graphics: Intel Iris Xe Graphics comes with DirectX 12.1 enables amazing graphics| HD Audio, Realtek ALC3287 codec, Stereo speakers, 2W x2, Dolby Audio | SD card reader | Supports up to 4 independent displays Ports: 1x USB 3.2 Gen 1, 1x USB 3.2 Gen 1 (Always On), 1x USB-C 3.2 Gen 2 (support data transfer, Power Delivery 3.0 and DisplayPort 1.4), 1x Thunderbolt 4, 1x HDMI 2.1, 1x Card reader, 1x Ethernet (RJ-45), 1x Headphone / microphone combo jack (3.5mm)