Corsair SF850L SFX-L PSU Review – The BEST SFX-L PSU

Box & Bundle

Similarly to the SF1000L, there is a photo of the PSU, with its modular panel in view, at the face of the box. The ATX v3.0 badge in the top-right corner is what matters the most. The box provides good protection, and the bundle includes all the necessary along with an SFX-to-ATX adapter bracket, which will come in handy if you want to install the PSU in an ATX chassis, and the short cables are not an issue.

Product Photos

The PSU has large perforations on the top and front grilles so that airflow won’t be disrupted. The design is attractive but not as nice as in the Asus Rog Loki SFX-L model, which costs more.


Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (300mm) 1 1 16-20AWG No
4+4 pin EPS12V (400mm) 2 2 16AWG No
12+2 pin PCIe (410mm) (600W) 1 1 16-24AWG No
6+2 pin PCIe (410mm) 2 2 16AWG No
6+2 pin PCIe (400mm+100mm) 1 2 16-18AWG No
SATA (110mm+115mm+115mm+115mm) 2 8 18AWG No
4-pin Molex (100mm+110mm+110mm) 1 3 18AWG No
AC Power Cord (1380mm) – C13 coupler 1 1 16AWG

Two EPS connectors on dedicated cables, two PCIe 6+2 pin on dedicated cables, two 6+2 PCIe pin on a single cable, a single 12VHPWR set at 600W, eight SATA, and three 4-pin Molex connectors. Compared to the SF1000L, it loses one of the 6+2 PCIe dedicated cables because of the 150W lower capacity. Still, the provided cables and connectors are more than enough for this PSU’s capacity. Lastly, the cables are short, so if you use the provided SFX-to-ATX adapter bracket to install the PSU in a standard chassis, the short cables will be the limiting factor. Lastly, I won’t whine about the short distance between the peripheral connectors since this is an SFX-L unit.

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6 thoughts on “Corsair SF850L SFX-L PSU Review – The BEST SFX-L PSU

  1. Is the included 12VHPWR cable sufficient/safe for powering an RTX 4090 FE or should a 3×8 cable/adapter still be used? If it is sufficient and totally safe, does the manual specify which ports to use or doesn’t that matter?

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