At IST Computers, we offer computers with professionally customized and upgraded configurations designed to maximize performance. To complete these enhancements, our certified technicians carefully open the manufacturer’s sealed packaging for inspection, testing, and precise installation according to the advertised specifications. All systems and components are brand new. Warranty service is handled directly by IST Computers, not the manufacturer. The ThinkBook 15 stands as the budget-friendly replacement for the Lenovo ThinkPad E16, delivering exceptional durability at an accessible price point while meeting rigorous MIL-STD-810H military standards for reliable performance, complemented by a sleek aluminum alloy design that masterfully balances toughness and portability to suit both work and personal use. Powered by the Intel Core i7-1255U Processor (boasting 10 cores, 12 threads, a base clock speed of 1.7GHz, a max turbo frequency of 4.7GHz, and 12MB L3 Cache), it delivers outstanding multitasking capabilities, paired with 40GB DDR4 RAM and a 1TB PCIe NVMe M.2 SSD to combine speed and endurance for professionals on the go. Featuring a 15.6" FHD (1920×1080) IPS anti-glare touchscreen with 300 nits of brightness and Intel Iris Xe Graphics, it offers stunning visuals, while also supporting multi-display setups that can drive up to three external 4K (3840×2160) monitors simultaneously at 60Hz via its HDMI and Thunderbolt 4 ports. Equipped with versatile connectivity options including Thunderbolt 4 / USB4 40Gbps ports, USB-C 3.2 Gen 2, 2 x USB-A 3.2 Gen 1, HDMI 2.1, RJ45, and an audio combo jack, plus Intel Wi-Fi 6 802.11AX and Bluetooth 5 for fast, reliable wireless performance, it keeps you connected wherever you are. Prioritizing security, this laptop includes advanced features such as an FHD webcam with a privacy shutter, a built-in fingerprint reader for quick and secure login, and TPM 2.0 technology to safeguard your data—perfect for professionals and privacy-conscious users seeking protection without compromising convenience or performance—all running on Windows 11 Professional 64-bit with AI-powered Copilot for intelligent task assistance, making it ideal for school education, designers, professionals, small businesses, programmers, casual gaming, streaming, online classes, remote learning, Zoom meetings, video conferences, and more. Brand New Computer has been resealed to upgrade the Memory/SSD.