be quiet! Pure Power 13 M 850W is ATX 3.1 compliant and PCIe 5.1 compatible,10-year manufacturer's warranty.Pure Power 13 M 850W is an ATX 3. 1 compliant and PCIe 5. 1 compatible power supply with semi passive cooling. It offers peerless dependability with best in class features. Having both a PCIe 5. 1 cable and PCIe 6+2 cables in the scope of delivery, this PSU offers outstanding compatibility with current gen and next gen graphics cards. Pure Power 13 M 1000W offers the best combination of features with outstanding compatibility. Features 80 PLUS Gold