MSI 

AERS12TJ251 MSI AEGIS RS (TOWER) GAMING DESKTOP, INTEL CORE I9-12900K, GEFORCE RTX 3090, 32G

Mfg Part Number:  AERS12TJ251  
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Price: $5,600.83 + Free Shipping
Quantity:
More to Come
Last Updated: Oct 28, 2025
No Sales Tax except these states
, PO and Wire.

The Aegis RS is built exclusively with MSI components that are tried and true in performance and reliability. All MSI components undergo rigorous quality control to ensure reliability and durability for a superior PC performance. The Aegis RS is built to last with its easy upgradability. Start your journey to becoming an Esports champion with the Aegis RS. A slick matte black desktop with a premium build made exclusively for pro-level gaming. As your game advances, so will the Aegis RS with its simple upgradability. It's built to be your companion for the long road ahead on your quest to becoming the world's best.

Main Specification
General Information
Manufacturer MSI
Manufacturer Part Number AERS12TJ251
Manufacturer Website Address http://www.msi.com
Brand Name MSI
Product Line Aegis RS
Product Model Aegis RS 12TJ-251US
Product Name Aegis RS 12TJ-251US Gaming Desktop
Product Type Gaming Desktop Computer
Processor
Processor Manufacturer Intel
Processor Type Core i9
Processor Generation 12th Gen
Processor Model i9-12900K
Processor Core Hexadeca-core (16 Core)
Processor Speed 3.20 GHz
Maximum Turbo Speed 5.20 GHz
Chipset
Chipset Manufacturer Intel
Chipset Model Z690
Memory
Standard Memory 32 GB
Memory Technology DDR5 SDRAM
Memory Configuration 2 x 16GB
Number of Occupied Memory Slots 2
Storage
Total Hard Drive Capacity 2 TB
Hard Drive Configuration 1 x 2TB
Total Solid State Drive Capacity 2 TB
Solid State Drive Interface PCI Express NVMe 4.0
Solid State Drive Configuration 1 x 2TB M.2 NVMe
SSD Form Factor M.2
Optical Drive Type No
Display & Graphics
Graphics Controller Manufacturer NVIDIA
Graphics Controller Model GeForce RTX 3090
Graphics Memory Capacity Up to 24 GB
Graphics Memory Technology GDDR6X
Graphics Memory Accessibility Dedicated
Network & Communication
LAN Model I225V
Ethernet Technology 2.5 Gigabit Ethernet
Wireless LAN Yes
Wireless LAN Standard IEEE 802.11ax
Bluetooth Yes
Interfaces/Ports
Number of HDMI Outputs (Rear) 1
HDMI (Rear) Yes
Total Number of USB Ports 11
Number of USB 2.0 Ports (Rear) 4
Number of USB 3.2 Gen 1 Ports 4
Number of USB 3.2 Gen 2 Ports 1
Number of USB 3.2 Gen 2x2 Type-C Ports 1
USB Type-C (Front) Yes
USB Type-C Detail 1 x fron 3.2 Gen 2 Type C
Number Of Ethernet Ports 1
Number of DisplayPort Outputs (Rear) 3
DisplayPort (Rear) Yes
Operating System
Operating System Platform Windows
Operating System Windows 11 Home
Power Description
Maximum Power Supply Wattage 850 W
Physical Characteristics
Product Color Matte Black
Height 17.7"
Width 8.5"
Depth 16.9"
Weight (Approximate) 29.98 lb
Miscellaneous
Package Contents
  • Aegis RS 12TJ-251US Gaming Desktop
  • Gaming Mouse Pad
  • MSI Gaming Keyboard
  • MSI Gaming Mouse
Features Liquid Cooling System
Country of Origin China
Environmentally Friendly Yes
Energy Efficiency Compliance Energy-related Products Directive (ErP)
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Warranty
Limited Warranty 1 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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