Asus ROG Strix GL12CX-XB991 Gaming Desktop (3.60 GHz Intel Core-i9-9900K, 32 GB DDR4 SDRAM, 1 TB SSD, Windows 10 Pro)


Out Of Stock

Rebirth of a Gaming Beast

The newly re-engineered ROG Strix GL12CX further pushes the limits of extreme gaming performance and features a striking, unconventional design. This Windows 10 gaming desktop now boasts the latest 9th Generation Intel® Core™ i9-9900K processor (factory overclocked up to a top speed of 5.1GHz) and NVIDIA® GeForce® RTX 2080 Ti graphics for unrivaled gaming experiences. It features the ROG-exclusive DIMM.2 module with support for dual SSDs that can be configured in RAID, along with tool-free expansion bays and an esports-ready hot-swap SSD tray for easy upgrades. A transparent side panel and Aura Sync lighting effects let you customize the colors of Strix GL12CX, inside and out.


Defying convention

ROG Strix GL12CX draws inspiration from stealthy ninjas, with an all-black chassis featuring sharp angles and slashes evoking strikes of a katana on armor. Some of those slashes serve as intake or exhaust vents, while others incorporate Aura Sync LEDs for limitless customization and matching with compatible peripherals.


Overclocked for formidable firepower

Only the very best processors are chosen to power ROG Strix GL12CX. It features a new 9th Generation Intel Core i9-9900K CPU that's factory overclocked up to a top speed of 5.1GHz for a serious performance boost. Strix GL12CX is great for gaming, but it's capable of so much more: multitask, play, stream, and record your gaming sessions, with plenty more performance to spare!


Unrivaled graphics performance

ROG Strix GL12CX is packed with the most advanced gaming GPU to date, with up to NVIDIA GeForce RTX 2080 Ti graphics to ensure supersmooth 4K UHD gaming visuals and VR experiences. The new GeForce RTX 20-series graphics cards also support real-time ray tracing effects and DLSS for improved realism. In addition, NVIDIA® G-SYNC™ reduces input lag, minimizes perceived stuttering, and eliminates visual tearing.

Game Test

Geared for the latest games

Hours of playtesting ensure that ROG Strix GL12CX runs the latest and most popular game titles smoothly. This gaming desktop pushes the envelope, running Call of Duty®: Black Ops 4 and Rise of the Tomb Raider™ at extremely smooth framerates, even at the highest visual settings.


Innovative DIMM.2 module for SSDs

At the heart of ROG Strix GL12CX is a motherboard with the latest Intel Z390 chipset, and an ROG-exclusive DIMM.2 module for two M.2 SSDs that are cooled by a dedicated heatsink. Strix GL12CX gives you even greater storage flexibility - pair the dual NVMe drives in a speedy RAID configuration, or use one SSD as a system drive and one stick of Intel® Optane™ memory to accelerate your HDD. NVMe® PCI Express® (PCIe®) technology provides ROG Strix GL12CX with superfast transfer speeds to reduce loading times for apps and games. The M.2 PCIe 3.0 x4 SSD in Strix GL12CX is significantly faster than standard SATA 3 SSDs and HDDs.


Your machine, your style

Customizable Aura Sync lighting has over 16 million colors and several preset effects so you can customize your own RGB configurations, or use them to react to in-game events and environments in compatible games. There's even internal illumination on several components, all of which can be seen through the optional transparent side panel. You can even synchronize effects and colors with Aura Sync-compatible keyboards, mice, headsets, and other peripherals to give your gaming setup a consistent look.

Product Overview

UPC Code: 192876386453
Manufacturer Warranty: NONE
Country of Origin: CHINA

General Information

Manufacturer:   ASUS Computer International
Manufacturer Part Number:   90PD02P1-M06540
Manufacturer Website Address:
Brand Name:   Asus ROG
Product Line:   Strix
Product Series:   GL12
Product Model:   GL12CX-XB991
Product Name:   Strix GL12CX-XB991 Gaming Desktop Computer
Product Type:   Gaming Desktop Computer

Processor & Chipset

Processor Manufacturer:   Intel
Processor Type:   Core i9
Processor Generation:   9th Gen
Processor Model:   i9-9900K
Processor Speed:   3.60 GHz


Standard Memory:   32 GB
Maximum Memory:   32 GB
Memory Technology:   DDR4 SDRAM
Number of Total Memory Slots:   2
Number of Occupied Memory Slots:   2
Intel Optane Memory Ready:   Yes


Total Solid State Drive Capacity:   1 TB
Optical Drive Type:   DVD-Writer
Optical Media Supported:   DVD-RAM/±R/±RW

Display & Graphics

Graphics Controller Manufacturer:   NVIDIA
Graphics Controller Model:   GeForce RTX 2080 Ti
Graphics Memory Capacity:   Up to 11 GB
Graphics Memory Technology:   GDDR6
Graphics Memory Accessibility:   Dedicated
VR Ready:   Yes

Network & Communication

Wireless LAN:   Yes
Bluetooth:   Yes


HDMI (Rear):   Yes
Total Number of USB Ports:   12
Number of USB 2.0 Ports (Front):   2
Number of USB 2.0 Ports (Rear):   2
Number of USB 3.1 Gen 1 Ports (Front):   2
Number of USB 3.1 Gen 1 Ports (Rear):   4
Number of USB 3.1 Gen 2 Ports (Rear):   2
USB Type-C (Rear):   Yes
USB Type-C Detail:   1 USB Type-C
Number of DisplayPort Outputs (Rear):   2
DisplayPort (Rear):   Yes


Operating System Platform:   Windows
Operating System:   Windows 10 Pro
Operating System Architecture:   64-bit

Power Description

Maximum Power Supply Wattage:   700 W

Physical Characteristics

Color:   Iron Gray
Form Factor:   Tower
Height:   15.7"
Width:   7"
Depth:   18"
Weight (Approximate):   24.30 lb


Package Contents:  
  • Strix GL12CX-XB991 Gaming Desktop Computer
  • Strix Flare Keyboard
  • Gladius II Mouse
  • Power Cord
  • Warranty Card
  • Quick Manual

Environmentally Friendly:   Yes
Environmental Certification:   RoHS


Limited Warranty:   1 Year
sales & expert advice (844) 888-0909