【Windows 10 Pro OS】Fanless pc stick Pre-installed Windows 10 Pro (64-bit) OS.Support Auto-on after power failure, simply get into BIOS interface by pressing "ESC" key when boot this mini pc, choose "Boot" and "Enable Automatic Power On". ►【Intel Atom Processor】Quad-Core Intel Atom x5-Z8350 Processor (2M Cache, up to 1.92 GHz). ►【Dual-Band WiFi】Built in 2.4G/5G WiFi and Bluetooth 4.2,makes everything smoother whenever transmission and download. ►【Expand Storage】4GB DDR, 64GB of Storage. You can expand the storage with a Micro SD card up to 128GB. With two USB ports(1*USB3.0,1*USB2.0)for easy connection to other devices. ►【4K HD】Equipped with Intel HD graphics, with resolution support 4K. Amazing operating performance, gives you quick responses, smooth picture loading.