ACER AC650 FR — 650W 80 PLUS Bronze Full Modular Black

Acer AC650 FR 650W 80 PLUS Bronze Full Modular Black is an ATX power supply offering 650 W rated power, 80 PLUS Bronze efficiency, full modular cabling, Active PFC, DC-to-DC conversion, a 120 mm fan, and a 648 W +12 V rail. Its connectivity includes 1× 24-pin ATX, 2× 4+4-pin CPU, 2× PCIe 6+2-pin, 5× SATA and 3× peripheral connectors. Its 90–260 V full-range input makes it suitable for a broad range of mains voltages.

Main specifications

The AC650 FR uses a 54 A +12 V rail rated at 648 W, allowing almost the entire rated 650 W capacity to be delivered through the primary +12 V rail used by modern CPUs and graphics cards.

Cable configuration

Because the AC650 FR is fully modular, the power cables can be connected according to the requirements of the PC build.

• 1 × 24-pin ATX motherboard connector — 550 mm
• 2 × 4+4-pin ATX12V/EPS CPU connectors — 600 mm
• 2 × PCIe 6+2-pin connectors — 550 mm
• 5 × SATA connectors — 500 + 150 + 150 mm
• 3 × 4-pin peripheral/IDE connectors — 500 + 150 + 150 mm

The product documentation and matching listings consistently identify the same modular connector arrangement.

Protection and power technology

The AC650 FR uses Active PFC and a DC-to-DC conversion design. Its listed protection features include:

• OCP — Over-Current Protection
• OPP — Over-Power Protection
• SCP — Short-Circuit Protection
• OVP — Over-Voltage Protection
• UVP — Under-Voltage Protection

The internal design has also been independently examined in a 2026 teardown, which identifies Active PFC, a forward-converter topology, synchronous rectification and DC-to-DC conversion.

Cooling

A 120 mm fan provides active cooling for the PSU. The published specifications identify a rifle-bearing fan with a maximum speed of approximately 2,000 RPM.

Compatibility

With its 650 W capacity, 648 W +12 V output and two PCIe 6+2-pin connectors, the AC650 FR is intended for mainstream to performance-oriented desktop configurations using a dedicated graphics card. It is particularly suitable where a fully modular cable system is desired for cleaner cable management.

It should not be described as an ATX 3.0 / PCIe 5.0 power supply: the available specifications list ATX 3.0 / PCIe 5.0 as N/A, and the GPU power connectors are 6+2-pin PCIe rather than a native 12VHPWR/12V-2×6 connector.