This is a high-cooling, high-silence model PC from Sycom. It's a so-called gaming PC, but I purchased it for the purpose of quiet, high-performance dual water cooling. I never played games on it, and instead used it for image editing, such as RAW processing of single-lens reflex camera photos. **Specifications:** CPU: Intel Core i9-9900K Water Cooling UNIT: Sycom Original Asetek 650LS + Enermax UCTB12P [Water Cooling Unit] MOTHER: ASUS TUF Z390M-PRO GAMING MEMORY: 64GB [16GB*4] DDR4-2666 SSD: 500GB KIOXIA EXCERIA VGA: Sycom Original Water-Cooled Silent Specification GeForce RTX2070 8GB + Asetek 740GN Water Cooling + Enermax UCTB12 CASE: Fractal Design DEFINE Mini C Black TG [Tempered Glass Side Panel] POWER: ATX 80 PLUS Gold Full Plug-in Semi-Fanless KRPW-GA750W/90+ OS: Windows 11 Pro **Product Condition:** Since I used it infrequently and cleaned the fan filters regularly, I believe the interior is also clean. I only tested overclocking once immediately after purchase and haven't used it since. **Notes:** - There is a slight scratch on the lower left front of the case. - The thermal pad on the SSD heat spreader is torn and has been reapplied, but if you are concerned, please replace it. - I have peeled off half of the side panel glass protective film for this listing and confirmed that it peels off normally and cleanly. Please peel it off as appropriate after arrival. **Additions After Purchase:** - Front case fan added (Spring 2021) - Memory upgraded to 64GB (Winter 2024) - Power supply replaced with semi-fanless (Summer 2025) **Other:** - Initialized and benchmark tests performed (also confirmed game benchmarks). - As this is a used item, I cannot guarantee the same performance or operation as a new product. Please purchase only if you understand that it is being sold as-is. - Returns are not accepted to prevent swapping.