German PSU maker be quiet! Had several new power supplies on display at Computex. Perhaps the most interesting for small form factor enthusiasts are the two new SFX-L power supplies. The aptly named SFX-L-500W and SFX-L-600W are fully modular 80+ Gold rated power supplies that are not much bigger than the 120mm temperature controlled fan that cools it.

SFFNetwork examined the new PSUs at Computex.

According to AnandTech, be quiet! Is using High Power as the OEM for these power supplies rather than its usual partner FSP. The High Power platform offers up a single 12V rail design that supports multi GPU setups with the inclusion of 4 PCI-E power connectors. At least on the 600W variant (not sure on the 500W) the PSU is rated at 50A on the 12-volt rail, which is nice to see. The fan does not support spinning down to zero when under light load, but it does spin down to lower RPMs and has a temperature controlled fan curve that be quiet! claims is sufficient for even noise sensitive applications like HTPCs (hopefully Lee gets his hands on these soon and can confirm the advertised specs).

Both of the new small form factor (SFF) power supplies come with a three-year warranty which seems to be pretty standard for power supplies these days though five would be nice to see especially when they are going to be going into tiny cases with less airflow than the traditional ATX desktop. Speaking of ATX, the SFX-L PSUs come with an adapter that will allow you to install the SFF unit into a standard ATX power supply mount should you want to use it in a larger case.

The 500W and 600W PSUs have US MSRPs of $109 and $129 respectively.