300W continuous ATX PSU, direct replacement for L300NM-01 / PS-6301-06D1; 24-pin main + 4-pin CPU connectors, fully compatible with Dell MT chassis; Universal 100-240V auto-switching, active PFC for stable global use; 4x SATA power ports for HDD/SSD drives, standard Dell mini-tower form factor; Built-in OVP/OCP/SCP/OTP protections, reliable for 24/7 office/home use