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Black mid-tower gaming desktop with 360mm AIO liquid cooler and RGB memory visible through tempered glass side panel

Skytech

Skytech ST-LEGACY4-1805-B-AL gaming PC Ryzen 7 7800X3D RTX 5090 32GB 64GB DDR5 2TB NVMe

SKU CH-6XVT-ST2AC MPN ST-LEGACY4-1805-B-AL

Gaming desktop with a Ryzen 7 7800X3D, RTX 5090 32GB GDDR7, 64GB DDR5 6000, 2TB NVMe and 360mm liquid cooling

  • CPU TypeAMD Ryzen 7 7000 Series
  • CPU NameAMD Ryzen 7 7800X3D
  • Installed Qty1
  • Max Supported Qty1
  • CPU Base Frequency4.20GHz
  • Turbo Frequency5.0GHz

Option Antec P1 Performance Black/ 7800X3D / 5090 / 64G / 2T

  • Ryzen 7 7800X3D reaches 5.0 GHz turbo for high frame rates
  • RTX 5090 with 32 GB GDDR7 drives 4K and AI workloads
  • 64 GB DDR5 6000 memory handles multitasking and content creation
  • 2 TB Gen4 NVMe SSD loads games and projects quickly
  • 360 mm AIO liquid cooler keeps temperatures low under sustained load

High-performance desktop for gaming and creation

The Skytech Legacy ST-LEGACY4-1805-B-AL is a new gaming desktop PC built around an AMD Ryzen 7 7800X3D processor with a 4.2GHz base clock and 5.0GHz turbo boost, paired with an NVIDIA RTX 5090 graphics card carrying 32GB GDDR7 memory, 64GB DDR5 6000 RAM and a 2TB NVMe SSD.

Suitable for high-refresh 4K gaming

This system suits players who want maximum frame rates at 4K resolution and creators who need 32GB of video memory for rendering or AI tasks; it is not for buyers who need more than 2TB of fast storage or who require multiple graphics cards.

Graphics card with 32GB GDDR7 video memory

The single specification that decides fit is the RTX 5090 equipped with 32GB GDDR7, which determines whether the machine can hold the textures, models or datasets your workflow demands.

Highlights

  • Ryzen 7 7800X3D reaches 5.0 GHz turbo for high frame rates
  • RTX 5090 with 32 GB GDDR7 drives 4K and AI workloads
  • 64 GB DDR5 6000 memory handles multitasking and content creation
  • 2 TB Gen4 NVMe SSD loads games and projects quickly
  • 360 mm AIO liquid cooler keeps temperatures low under sustained load

Specifications

CPU TypeAMD Ryzen 7 7000 Series
CPU NameAMD Ryzen 7 7800X3D
Installed Qty1
Max Supported Qty1
CPU Base Frequency4.20GHz
Turbo Frequency5.0GHz
CPU Socket TypeAM5
GPU/VGA TypeGeForce RTX 5090
GPU Memory32 GB GDDR7
Virtual Reality ReadyYes
Memory Capacity32GB DDR5
Memory SpeedDDR5 6000
SSD2TB NVMe
HDDNo
Operating SystemWindows 11 Home
Power Supply1000W
TypeGaming & Entertainment
Release Year2025
AI FeaturesAI Ready
UsageConsumer
ColorBlack
ProcessorAMD Ryzen 7 7800X3D
Memory32 GB
Storage2 TB
Cooling SystemLiquid Cooling
Windows 11Ready
BrandSkytech
ModelSTT-LEGACY4-1805V2-C02-*-**
ChipsetAMD X670
Shipping weight23.59 kg
Package size660 × 610 × 381 mm

Other versions of this model

2 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How loud does the 360 mm AIO liquid cooler run when the Ryzen 7 7800X3D sustains its 5.0 GHz boost all day?

The 360 mm AIO liquid cooler is designed to keep the Ryzen 7 7800X3D within thermal limits during sustained 5.0 GHz boost operation, minimising fan noise while preventing thermal throttling.

Does the motherboard provide the 12VHPWR connector required by the RTX 5090 32 GB GDDR7, or must I supply an adapter?

The 1000 W power supply includes native 12VHPWR cabling for the RTX 5090 32 GB GDDR7, so no adapter is needed.

Can I keep using my current 1080p 60 Hz monitor with the single HDMI and single DisplayPort outputs on the RTX 5090?

Yes, the RTX 5090 provides one HDMI and one DisplayPort output, both compatible with a 1080p 60 Hz monitor.

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