This is a G-tune brand desktop PC that I purchased for around 200,000 yen at the time. I have confirmed that it powers on and functions normally, but I haven't checked the operation of all the ports. I believe the audio jacks, USB, and the GPU's HDMI and DP ports are fine. I am selling it because I built a custom PC and no longer need this one. I used it for gaming and video editing, and I did not use it for mining. I cleaned it as much as I could before listing it, but there are some areas with internal dirt, so I've marked it as "used". The specifications are as follows, but please also refer to the images. OS: Windows 10 Home CPU: Intel i9-9900k CPU Cooler: 120mm liquid cooler GPU: GEFORCE RTX2080 Motherboard: z390 microATX Memory: DDR4 16GB SSD: SATA 512GB (C drive) HDD: SATA 7200rpm 1TB Wi-Fi: None (Consider this an extra) The SSD and HDD will be formatted to their factory settings. If you don't need the SSD or HDD, please let me know and I will offer a discount. Regarding Wi-Fi, it wasn't included when I bought it, and I added a TP-Link Archer TX20E later. You can use it by installing the drivers and user guide from the website, but you'll need to research how to do it yourself, so consider it an extra. If you don't use it, you'll only be able to use a wired connection, so you'll need to prepare your own or use a wired connection. Please feel free to ask if you have any questions. Thank you.