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: 11th Gen Intel Core i5-1135G7, 2.4 Ghz base clock, 4.2 Ghz max boost clock, 4 Cores, 8 MB Cache | Memory: 16 GB (8GB soldered + 8GB SO-DIMM) RAM DDR4-3200 MHz, upgradable upto 40 GB | Storage: 1TB HDD+256GB SSD M.2

 Operating System: Preloaded Windows 10 Home with Lifetime Validity, FREE Upgrade to Windows 11* (when available, refer product description for more details) | Pre-installed software: Microsoft Office Home & Student 2019

 Display: 15.6″ (39.62 cm) FHD IPS 300nits, Antiglare, 100% sRGB Color Gamut, Contrast Ratio: 1200:1, 170° Viewing Angle | Graphics: Int Iris XE Graphics | High Definition Audio, Realtek ALC3287 codec, Stereo speakers, 2W x2, Dolby Audio | 4-in-1 card reade