At the heart of the ThinkPad E15 Gen 4 is a 12th Gen Intel Core i5 processor, delivering enhanced system-wide operations with Performance and Efficiency core frequencies up to 4.4 and 3.3 GHz, respectively. You get 16GB of DDR4 3200 MHz RAM and a 256GB M.2 NVMe PCIe 4.0 solid-state drive, both working together to streamline multitasking capabilities and application responsiveness. You get a clear and smooth picture suitable for work and play with the 15.6" In-Plane Switching (IPS) panel, delivering up to 1920 x 1080 resolution. Connect your peripherals with Thunderbolt 4, USB 2.0, and USB 3.2 Gen 1 ports, allowing you to use a wide range of peripherals from external drives to mice and controllers. A user-facing 1080p webcam and mic array enables others to see and hear you clearly when conducting remote conference calls. Access cloud networks, download assets, and even stream your favorite content wirelessly with Wi-Fi 6E (802.11ax) technology or use a wired connection with the Gigabit Ethernet port. This system runs on Windows 11 Pro and includes a downgrade key allowing you to switch to Windows 10 Pro 64-bit.