[Technical support] GEEKOM NUC12 mini computer has already pre-installed Windows 11 Pro system and supports changing the OS to Windows 10 Pro, and Linux. We provide a One-Year limited warranty and lifetime professional customer service. Please do not hesitate to contact us whenever you need pre-sale or after-sale support. [Say bye to Delays] GEEKOM i7 mini pc with WiFi-6E Wireless, have 2.5G/5G/6G triple band, more faster and lower latency. 2.5 Gigabit Ethernet prepares you for fast Internet connections and high-speed surfing. Bluetooth 5.2 allowing you more quickly to connect other wireless devices (headset, mouse, keyboard, etc.). [8K UHD & 4 Screens Support] Equipped with Intel UHD Graphics and have 2 x USB4.0 ports(Support DP1.4, 8K@60Hz), 2 x HDMI 2.0 ports(4k@60Hz), Support two 8K displays and two 4K displays (four monitors in total)at the same time to do multitask, play games, and enjoy more sharp, lifelike visuals. [32GB 3200MHz DDR4&1TB PCIe Gen 4 SSD] The NUC12 i7 mini pc is equipped with a 3200MHz RAM, which is 20% faster than 2666MHz RAM and supports Dual-channels, expandable up to 64GB(32+32), and offer 1TB PCIe Gen4 SSD(faster than Gen3 40%), support expandable to 2TB capacity. Additionally, it extra has 1 x M.2 2242 SATA SSD slot, expandable up to 1TB; 1 x 2.5 "SATA HDD (7mm) slots, expandable up to 2TB. [Excellent Performance] GEEKOM Mini IT12 NUC12 Mini PC is equipped with Newest 12th Gen Intel Core i7-12650H processor(10cores, 16 threads), 24MB Cache, up to 4.70 GHz.GEEKOM Mini IT12 series the power is only 90 Watts, which is only 1/4 of other desktop, let you to spend less electricity to support 24 hours work of every day, suitable for Gaming, home working, business offices, servers, school education, and billboards.