KINDLY BE ADVISED 1. The Operating System is Windows 11; It is licensed and activated before shipping but no product key. Please check its licensed condition when it arrives: press "Win+R" keys-input "slmgr.vbs -xpr" to run(note the space between vbs and -xpr). 2. ABOUT TAX AND VAT 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. 3. The CPU is available for Celeron 2955U / Celeron 3865U / Celeron 3965U. It will be shipped with any of them at random. Celeron 2955U: Base Frequency: 1.4GHz, Processor Graphics: Intel HD Graphics for 4th Generation Intel Processors. Celeron 3865U: Base Frequency: 1.8GHz, Processor Graphics: Intel HD Graphics 610. Celeron 3965U: Base Frequency: 2.2GHz, Processor Graphics: Intel HD Graphics 610. SPECIFICATIONS Processor: Intel Celeron Processor Celeron 2955U/Celeron 3865U/Celeron 3965U. 2 MB Intel Smart Cache. OS: Windows 11 Pro. Support 64 bit computing. RAM Slot: 1 x SO-DIMM Slot, support up to 8GB. Storage: 1 x mSATA SSD Socket, support 1 x SATA 2.5 inches HDD (highest data conversion rate SATA 3.0). Ethernet: 6 x 10/100/1000/Mbps Intel 211AT, support timing on, wake on network. Operating Temperature: -20/+65 Centigrade Energy-saving: Support Energy-saving technology, Speedstep. Material: Brushed Aluminum Alloy, a film covered on surface. Input: DC100-240V Output: DC12V 5A / 60W Weight: 2.5KG Size: 17cm*15cm*4.5cm CONNECTORS Front Panel: 4xUSB3.0, 1xCOM RS232, 1xCOM RJ45, 1xHD, 1xRestart Switch, 1xPower Button. Back Panel: 6xRJ45 Gigabit LAN Port, 1xPower Supply Interface. WHAT IN BOX 1xMini PC, 1xPower Cable, 1xPower Adapter, 2xAntennas, Screws, 1xUser Manual.