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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A 24-core liquid-cooled gaming desktop with 32GB DDR5, 8TB NVMe, 10TB HDD and Radeon RX 9070 XT graphics
This system pairs a 24-core Intel Core Ultra 9 285K processor with 32GB DDR5 memory and an AMD Radeon RX 9070 XT graphics card. It targets creators and gamers who need strong multi-threaded compute and modern GPU performance in a single tower. Windows 11 Pro is installed and ready to use.
A 360mm liquid cooler keeps the CPU near its 5.70 GHz boost clock during long renders or compile jobs instead of throttling after a short burst. The 850W 80 PLUS Bronze power supply delivers steady current to the GPU and all drives without voltage sag. Thermaltake's Japanese main capacitor and ultra-quiet 140mm fan help maintain stable rails under continuous load.
Two Samsung 990 PRO 4TB drives share the motherboard's PCIe 4.0 x4 lanes, limiting sequential reads to 7450 MB/s and writes to 6900 MB/s. The Radeon RX 9070 XT also runs on PCIe 4.0, so its 16GB frame buffer cannot exceed that interface ceiling. Four SATA 6Gb/s ports and four M.2 slots remain for future expansion within the same bandwidth envelope.
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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 | 8 TB NVMe |
| Hard drive | 10 TB |
| Optical drive | No |
| Display | |
| Screen size | No Screen |
| Graphics | |
| Graphics | AMD Radeon RX 9070 XT |
| 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 | Tower |
| Compatibility | |
| Windows 11 support | Ready |
| Software | |
| Operating system | Windows 11 Pro |
| More details | |
| AI capability | AI Ready |
| Cooling method | Liquid Cooling |
The CPU uses a 360 mm Quiet Edition liquid cooler and the case includes two 140 mm PWM front fans designed for low noise, so acoustic output stays modest even during long sessions.
The graphics card provides standard DisplayPort and HDMI outputs, so a monitor with matching inputs and the appropriate cables are all that is required.
Yes, the board offers four SATA 6 Gb/s ports and multiple USB 2.0 headers, so existing SATA drives and legacy USB devices connect directly.
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