The DC123SR is an ultra high efficiency ATX DC-DC Converter Module that provides regulated power 3.3V@10Amps, 5V@10A and 12V@12A (-12V also standard). This converter works with the following battery management modules: BB-04S, MP-04S, MP-08S, XP-04S and XP-08S. The size of the module is 2.91"X 3.58" and will stack on any version of the battery management modules listed above (FR or SR) The conversion efficiency is up to 97%. Note: The ATX connector does not provide -5Vor 5VSB so some motherboards may not operate correctly. The 5VSB pins are sourced from the 5V supply, motherboards need to be configured to turn-on after power fail to workaround the no 5VSB ahead of turn-on. "R" at the end of the part number indicates the module is RoHS compliant |