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Black MSI MAG PANO 120R PZ gaming desktop with 360mm liquid cooler visible through side panel

ArsenalPC

ArsenalPC Gaming PC Ryzen 9 9900X3D RX 9070 XT 128GB DDR5 2TB+2TB 850W 360mm liquid cooled

SKU CH-3SAG-G5HJJ

A 12-core Ryzen 9 9900X3D and Radeon RX 9070 XT desktop with 128GB DDR5, dual 2TB storage, 360mm liquid cooling and 850W power

  • TypeGaming & Entertainment
  • Form FactorDIMM 288-pin
  • AI FeaturesBuilt around AMD Ryzen 9 9900X and AMD Radeon RX 9070 XT, th
  • UsageConsumer
  • ColorBlack
  • Processor9-9900X3D

CPU AMD Ryzen 9 9900X3D

  • AMD Ryzen 9 9900X
  • AMD Ryzen 9 9900X3D
  • AMD Ryzen 9 9950X3D

Struck-through versions exist but are not stocked here.

Video Card Radeon RX 9070 XT

  • Radeon RX 9070
  • Radeon RX 9070 XT
  • Geforce RTX 5070
  • GeForce RTX 5070
  • GeForce RTX 5070 Ti
  • Geforce RTX 5070 Ti
  • Geforce RTX 5090
  • GeForce RTX 5090
  • Geforce RTX 5080
  • GeForce RTX 5080

Struck-through versions exist but are not stocked here.

Memory|Storage 128GB DDR5|2TB SSD + 2TB HDD

  • 64GB DDR5|1TB SSD + 2TB HDD
  • 64GB DDR5|2TB SSD + 2TB HDD
  • 64GB DDR5|4TB SSD + 2TB HDD
  • 128GB DDR5|2TB SSD + 2TB HDD
  • 128GB DDR5|4TB SSD + 2TB HDD

Struck-through versions exist but are not stocked here.

  • 12-core Ryzen 9 9900X3D at 4.4 GHz for heavy multitasking
  • Radeon RX 9070 XT with GDDR6 memory drives high-frame-rate gaming
  • 128 GB DDR5 in four 32 GB modules handles large workloads
  • 2 TB HDD at 7200 RPM plus 2 TB SSD gives capacity and speed
  • 360 mm liquid cooler and 850 W supply keep thermals stable

Ready-to-game desktop

This ArsenalPC system ships with Windows 11 installed and a 12-core Ryzen 9 9900X3D processor at 4.4 GHz. The Radeon RX 9070 XT graphics card uses GDDR6 memory. Four 32 GB DDR5 modules fill the motherboard for 128 GB total. A 2 TB NVMe SSD and a 2 TB 7200 RPM SATA drive provide fast boot and bulk storage.

360 mm liquid cooling

A 360 mm liquid cooler handles the CPU heat load while the 850 W power supply feeds the graphics card and other components. The MSI AM5 motherboard includes integrated audio and Wi-Fi. Component brands may vary across production batches.

Upgrade from mid-range builds

This configuration replaces systems limited to 8-core CPUs, 32 GB memory or single-drive layouts. Buyers who need more than 128 GB RAM or a second graphics card should look elsewhere. The jump is worthwhile when local AI workloads, 4K gaming or heavy multitasking exceed the capacity of lesser rigs.

Highlights

  • 12-core Ryzen 9 9900X3D at 4.4 GHz for heavy multitasking
  • Radeon RX 9070 XT with GDDR6 memory drives high-frame-rate gaming
  • 128 GB DDR5 in four 32 GB modules handles large workloads
  • 2 TB HDD at 7200 RPM plus 2 TB SSD gives capacity and speed
  • 360 mm liquid cooler and 850 W supply keep thermals stable

Specifications

BrandMSI
TypeGaming & Entertainment
Form FactorDIMM 288-pin
AI FeaturesBuilt around AMD Ryzen 9 9900X and AMD Radeon RX 9070 XT, this rig handles on-device model runs, image generation, and fine-tuning efficiently. Software isn’t included by default—install the frameworks you prefer and go.
UsageConsumer
ColorBlack
Processor9-9900X3D
Processor Main Features64 bit 12-Core Processor
Memory128GB
GraphicsRX 9070XT
AudioSound card - Integrated
Power Supply850W
Operating SystemWindows 11 Home
ChipsetAMD AM5
Motherboard NameMSI AM5 MOTHERBOARD WIFI DDR5
CPU TypeRyzen 9 9000 Series
Installed Qty1
Max Supported Qty1
CPU NameAMD Ryzen 9-9900X3D
CPU Socket TypeAM5
CPU Main Features64 bit 12-Core Processor
GPU/VGA TypeAMD Radeon RX 9070 XT
Graphics CardAMD Radeon RX 9070 XT
Graphics InterfacePCI Express x16
Virtual Reality ReadyYes
Memory Capacity128GB DDR5
Memory SpeedDDR5
Memory Spec32 GB x 4
Memory Slot (Total)4
SSD2 TB
HDD2TB
HDD InterfaceSATA III
HDD RPM7200rpm
Storage Spec2 TB SSD + 2 TB HDD
Screen SizeNo Screen
WLANWi-Fi 6E
BluetoothBluetooth 5.3
Package TypeRetail

Other versions of this model

5 more in the same range

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

Questions about this item

How is the 360mm liquid cooler installed, and which step do people get wrong?

The cooler mounts to the AM5 socket on the MSI AM5 motherboard; the common error is forgetting to remove the plastic cover from the cold-plate before securing the bracket.

What maintenance will the 360mm liquid cooler and the 2TB 7200RPM SATA HDD need later?

Check the radiator fins for dust every few months and listen for pump noise; the mechanical drive may develop bad sectors after several years and should be backed up regularly.

What limit appears first under sustained load with the 850W supply and 360mm cooler?

The 850W unit caps total system draw, so prolonged full CPU plus GPU load can hit the power budget before the liquid loop reaches thermal saturation.

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