ATX 3.1 Power Supplies
ASUS TUF Gaming 850W 80 PLUS Platinum Power Supply Fully Modular ATX 3.1 Black
In stock
MSI MPG Ai1300TS Power Supply Unit 1300 W ATX 3.1 80 Plus Titanium Fully Modular Black
In stock
Seasonic CORE GC-850 ATX 3.1 850W Power Supply Black
In stock
Seasonic CORE GC-750 ATX 3.1 PSU 750W Black
In stock
Seasonic CORE GC-650 650W ATX 3.1 PSU Black
In stock
Asrock PRO-750B 750W ATX PSU Black
In stock
Asrock PRO-650G 650W ATX PSU Black
In stock
Asrock PRO-750G 750W ATX PSU Black
In stock
Antec NE1200 Platinum NeoEco 1200W ATX 3.1 PSU, PCIe 5.1, 80 Plus Platinum, 10-Year Warranty
In stock
be quiet! PURE POWER 12 1000W ATX 3.0 PSU 80+ Gold Modular Black
In stock
be quiet! POWER ZONE 2 1000W ATX Black PSU
In stock
be quiet! System Power 11 450W ATX PSU Black
In stock
be quiet! PURE POWER 12 850W ATX Black PSU
In stock
be quiet! Pure Power 13 M 650W ATX Black PSU
In stock
Asrock Steel Legend SL-850G 850W 80 Plus Gold ATX PSU
In stock
Asrock Steel Legend SL-1000G 1000W ATX PSU 80 Plus Gold
In stock
Asrock PG-850G 850W ATX PSU 80 Plus Gold
In stock
Asrock PG-750G 750W 80+ Gold PSU
In stock
Asrock PRO-650B 650W ATX PSU 80 PLUS Bronze
In stock
ASUS TUF GAMING 650W Bronze Power Supply
In stock
ASUS TUF-GAMING-850G-EVO 850W ATX PSU Black
In stock
ASUS TUF-GAMING 750G-EVO 750W ATX PSU Black
In stock
ASUS Prime 750W ATX PSU 20+4 Pin Black
In stock
ASUS Prime 850G 850W ATX PSU Black
In stock
ASUS TUF-GAMING-750B-EVO 750W 80+ Bronze ATX PSU
In stock
ATX 3.1 power supplies are the current standard, built to handle the power spikes of modern graphics cards and featuring the native 12V-2×6 (PCIe 5) connector. Our ATX 3.1 range covers efficient, reliable units from trusted brands across a range of wattages. All backed by a full manufacturer warranty. If you are buying a new GPU, an ATX 3.1 PSU is the safe, future-ready choice. See our power supply guide for help.
ATX 3.1 Power Supplies Buying Guide and FAQ
This ATX 3.1 Power Supplies range groups units by this feature. Below are the common questions.
What does ATX 3.1 mean on a power supply?
A ATX 3.1 PSU meets the latest ATX 3.1 standard, which is designed for the power spikes modern graphics cards can draw and provides the native 12V-2x6 (12VHPWR) connector. It is a useful feature to look for when matching a unit to a modern build.
Do I need a ATX 3.1 power supply?
If you are fitting a current high-end Nvidia graphics card, a unit with the right connector is the cleaner choice and avoids adapters. Match the feature to your parts and case.
What wattage and rating should I pair with it?
Choose wattage around your graphics card, roughly 650 to 750W for mid-range and 850W and up for high-end, and aim for a reputable 80 Plus Gold unit. That combination suits most gaming PCs.