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Thelio Major

Thelio Major employs workstation-class components backed by quiet, effective cooling to finalize your compute-intensive projects ahead of schedule.

  • AMD Ryzen or Intel Core processors
  • Up to 128GB of Memory
  • Up to NVIDIA RTX 4090 graphics
  • Up to 72TB of Storage
  • PCIe 5.0 storage ready
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System76 Thelio Major with Walnut Accent
  • AMD Ryzen or Intel Core processors
  • Up to 128GB of Memory
  • Up to NVIDIA RTX 4090 graphics
  • Up to 72TB of Storage
  • PCIe 5.0 storage ready
Desk setup with Thelio Major, external monitors, Launch keyboard, and a mouse.


Thelio Major is a high-end desktop designed with an all-star roster of components that breeze through intensive computing. We take this power even further by engineering the desktop to ensure it performs to its fullest potential.


Eager Processors

High-end processors like the AMD Ryzen 7950X or 13th Gen Intel Core i9 work to see your project completed as quickly as possible. With up to 24 CPU cores and 32 threads, Thelio Major drastically reduces wait times when processing your final file—no matter how many “final” versions you end up making.

Countless Cores

The more GPU cores in your desktop, the faster your project can be visualized. Thelio Major offers full-core performance with up to an NVIDIA RTX 4090 so you can model, simulate, and animate your work in record time.

Compile and Render Fast

Thelio Major is configurable with up to 128GB RAM. If you’re frequently rendering visualizations or compiling long sequences of code, more memory will greatly accelerate your project’s timeline.


Render yourself speechless in the strange, beautiful environments of modern games. As you traverse the terrain, powerful components like an Intel 13th Gen i9 processor and NVIDIA 4090 GPU present new delights before your very eyes. Behind the scenes is a different marvel: the technology behind the realism. Fast Wifi6E keeps your character in low-latency. Optimized thermals extend your session without slowing down your system, keeping your vision stutter-free. There’s plenty to discover, and it all starts with a capable machine as your guide.


Thelio Major is meticulously engineered to maximize performance and prevent throttling. Large-blade fans blow cool air up into the system. Meanwhile, copper pipes in the heat sink use phase-change cooling to move heat away from the CPU. Hot air is then expelled out the exhaust port. This bottom-up cooling system keeps your desktop running smoothly under high loads.


Optimized Ducted Cooling

After countless iterations testing fan placement, CPU duct size, exhaust port design, and other factors, we landed on the most optimal arrangement for effective cooling at low decibels.

Game in Luxury

Thelio Major leaves room for some of the largest GPUs on the market. Thanks to thermal engineering and a progressive fan curve, the heat generated by your graphics card exhausts effectively without causing your system unnecessary stress—leaving you to enjoy all the latest graphical perks.

Controlled Thermal Environment

Chassis-specific thermal engineering yields quiet and effective cooling in perfect balance. The Thelio IO board allows your operating system to monitor the temperature of your GPUs and adjust fan speeds for intensive computing. Large 140mm fans move air more effectively at a lower RPM, producing quieter acoustics. In short, Thelio Major is designed to prevent throttling and run efficiently at every level.


Thelio desktops are designed to provide easy access to your motherboard for upgrades and repairs. Slip in drives, add memory, and upgrade graphics cards at will with our open hardware design.


Side Panel Access

Unscrew the lid and access everything in the system. No obstructive wires, no loose parts.

Room (and Wires) for Upgrades

Any wires you’ll ever need are already provided inside the system. Thelio Major accommodates even the largest, most powerful GPUs on the market.

Easy Storage Expansion

The screw bay on the top bar houses enough screws to install the maximum number of 2.5” storage SSDs. Hot swappable drives slide in and out of the aluminum drive cage with ease.

Swappable accent colors

Let your alter ego shine with new swappable color accent panels on Thelio Major! Ponder with Neptune Blue, or use Martian Red to rise to the challenge. And when the day is done, new Farout Pink will help you blow off steam on Steam.



Create the best system to set yourself up for success. Customize Thelio Major to fit your needs with a wide variety of high-end component options across the board. To expand your right to repair, reduce e-waste, and extend the life of your machine, Thelio Major’s new removable I/O shield enables you to upgrade the motherboard down the line.

AMD Ryzen 7000

  • AMD Ryzen 7000 Series
  • Up to 64TB of Storage
  • Fast Wi-Fi 6E
  • Removeable I/O shield for future upgrades
  • PCIe 5.0 M.2 storage ready



Intel 13th Gen

  • 13th Gen Intel Core i7 or i9
  • Up to 72TB of Storage
  • Fast Wi-Fi 6E
  • Removable I/O shield for future upgrades
  • PCIe 5.0 M.2 storage ready




Rigid aluminum is cut, powder coated, and molded into a light, durable chassis. From the 3-Body Problem intake to the subtle mountainscape etch, Thelio Major adds elegance and character to your desk. Personalize it with natural or stained wood veneer options.

Back view of the machine with ports, the UNIX Epoch exhaust vent.
Detail of the machine exterior with the 3-Body Problem intake vent.
Detail of the machine exterior with intake vents at the bottom.
Storage drives inside the powder-coated aluminum cages.
Close view of the machine interior with GPUs.
Detail of the machine exterior showing the UNIX Epoch exhaust vent.


· Match your Thelio
· Dual, high-speed USB-A and USB-C ports
· Optimized for Pop!_OS
· Fully configurable
· Customizable colors and LEDs
· Buy alone or add when configuring your Thelio

Launch and Launch Lite keyboards
Side view of the machine showing walnut accent component.
Walnut accentbirch accentred accentBlue accentpink accenttraces accent

Thelio Major



Tech Specs

Operating System

Pop!_OS 22.04 LTS or Ubuntu 22.04 LTS


AMD® Ryzen™ 7000 Series


Integrated Radeon™ Graphics and/or AMD® or NVIDIA® discrete Graphics

Video Ports

Integrated UHD graphics : 1 x HDMI port, 2 x USB4 ports support USB Type-C display outputs (each requires a USB-C® to DisplayPort adapter cable)

Other options are dependent on graphics selection


Up to 128 GB Dual Channel DDR5


Up to 64 TB, 2 x M.2 PCIe Gen5 NVMe, 2 x M.2 PCIe Gen4, and 4 x 2.5″ SATA drives

Rear Ports

2 x USB4 with Intel JHL8540 USB4 controller ports (2 x USB Type-C), 1 x USB-C 3.2 Gen 2x2 port, 7 x USB-A 3.2 Gen 2 ports, 1 x USB 2.0 port, 1 x DisplayPort (Input only)

Rear Audio

Mic, Line Out, Line In


1 x 10Gb Ethernet, 1 x 2.5Gb Ethernet, built-in Wifi 6E (a/b/g/n/ac/ax) with Bluetooth 5.2

Power Supply

750W 80+ Certified (87% or greater power efficiency)

1000W 80+ Certified (87% or greater power efficiency)

1300W 80+ Certified (90% or greater power efficiency)


Height × Width × Depth

18.19″ × 10.32″ × 16.06″ (462 × 262 × 408mm)