220W Small Form Factor (SFF) PSU for Dell Inspiron 660S, Vostro 270S, D06S chassis; Direct replacement for DPS-220UB-1 A, HU220AS-00, CPB09-D220A, PS-5221-9, D220AS-00; Exact 24-pin + 4-pin connector layout, 100% plug-and-play installation; Universal 100-240V auto-switching input with active PFC for stable power; Fully tested with OVP/OCP/SCP/OTP protections for long-term reliability