Skytech ST-LEGACY4-1686-B-AL gaming PC Ryzen 9 9900X3D RTX 5090 32GB 64GB DDR5 4TB NVMe
- Ryzen 9 9000
- Ryzen 9 9900 × 3D
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Liquid-cooled desktop with 24-core Intel Core Ultra 9 285K, 32GB DDR5, 2TB NVMe SSD and GeForce RTX 5080 16GB for 4K gaming and AI workloads
The Adamant Custom Gaming PC is a pre-built desktop workstation for creators and enthusiasts who want high multi-threaded performance and modern graphics without assembling parts themselves. It ships with a 24-core Intel Core Ultra 9 285K processor, 32GB of DDR5 memory and a GeForce RTX 5080 16GB GPU ready for 4K workloads. Windows 11 Pro is installed and activated.
The system arrives fully assembled and tested, so the only physical steps are unboxing, attaching peripherals and connecting power. Liquid cooling tubing is pre-filled and sealed; do not attempt to open the loop or reposition the 360mm radiator. Front-panel connectors include one USB 3.2 Gen 2x2 Type-C, two USB 3.0 and audio jacks for immediate access.
Verify that your desk or floor space can accommodate the case dimensions of 447 x 215 x 469 mm and that your mains supply can deliver sufficient current for the 1000W 80 PLUS Gold PSU. The motherboard provides four DDR5 slots with a 192GB maximum, three M.2 connectors and four SATA ports for future storage expansion. Network connectivity includes Intel 2.5Gb Ethernet, Wi-Fi 7 and Bluetooth5.4.
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| Product | |
|---|---|
| Year of release | 2026 |
| Product color | Black |
| Processor | |
| Processor | Intel Core Ultra 9 (Series 2) |
| CPU model | Intel Core Ultra 9 285K |
| CPU socket | LGA 1851 |
| Memory | |
| RAM capacity | 32 GB DDR5 |
| Memory slots | 4 total |
| Max supported RAM | 192 GB |
| Storage | |
| SSD storage | 2 TB NVMe |
| Hard drive | No |
| Optical drive | No |
| Display | |
| Screen size | No Screen |
| Graphics | |
| Graphics | GeForce RTX 5080 |
| Audio & video | |
| Audio chip | Integrated |
| Sound channels | 7.1 channels |
| Connectivity | |
| Wi-Fi standard | Wi-Fi 7 |
| Network speed | 2.5 Gbit/s |
| Ethernet controller | Integrated |
| Wi-Fi | 802.11be Wireless LAN |
| Bluetooth support | 5.4 |
| Ports & slots | |
| Ethernet port | 1 port |
| Size & build | |
| Form factor | Desktop |
| Compatibility | |
| Windows 11 support | Ready |
| Software | |
| Operating system | Windows 11 Pro |
| More details | |
| AI capability | AI Ready |
| Cooling method | Liquid Cooling |
The 360 mm AIO has a 140 mm PWM fan; listen for its low hum and watch the CPU temperature settle near 3.7 GHz idle in Windows 11 Pro.
The system includes the Z890M AORUS motherboard, 24-core Core Ultra 9 285K, 32 GB DDR5, 2 TB Samsung 990 PRO NVMe, RTX 5080 16 GB, 1000 W 80 PLUS Gold PSU and 360 mm liquid cooler; only a monitor, keyboard and mouse are needed.
The build comes with 32 GB DDR5 in two slots, leaving two free for future expansion up to the 192 GB maximum supported by the LGA 1851 platform.
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