Kindly be noted: 1, The CPU is available for i7-4500U or i7-4510U Dual Core 4M Cache. i7-4500U: Base Frequency: 1.8GHz, Max. Turbo Frequency: 3.0GHz; intel HD4400 Graphics i7-4510U: Base Frequency: 2.0GHz, Max Turbo Frequency: 3.1GHz, intel HD4400 Graphics; it will be shipped with any one of them at random. 2, This mini PC works DDR3L with lower voltage RAM at 1.35V instead of normal 1.5V. 3, the Operating System is activated but not licensed, it is just for testing, please install the licensed one if you like it. Default: Windows 10 Pro; Optional: Windows 7, 8.1 Linux. 4, the product will be shipped from Hong Kong, it is seller's duty to pay tax and VAT, but buyer has to cooperate to pay it to postman in advance when the product is delivered, then remind seller to refund the same amount in the order as compensation. 5, it has been tested well before shipping, if any questions, please contact us, you will get a satisfied solution. Product Advantages: 1. Special: 64 bits computing, Turbo Boost Technology 2.0, 15W TDP CPU; Support Wake-On-LAN, calls on function automatically; SATA and mSATA drives supported, 2*mSATA3 SSD Slots; Support Max 16GB DDR3L RAM, 2 RAM Slots; I/O port: 2*HDMI, 2*NIC, 1*SPDIF Port, 4 USB*3.0, 4*USB2.0, 1* SD Card Slot 2. Stable: Intel Haswell-ULT +Intel HD Graphics 4400/5000+Fanless 3. Smart: Fanless system, smart design, zero noise, work 24hrs working 4. Smooth: Support 3D games, blue-ray and HDMI 4K HD streams, full 1080P playback 5. Strong: intel i7 4th Generation Dual Core CPU, 4M Cache, fast speed. Application: -used as Personal Computer, high configuration and fast speed, zero noise. - Internet Bar. Factory, bank, supermarket, manager rooms, library, reading room, hotel, training, call center, CCTV company.... More