WRIARICH 290W MT Replacement Power Supply Compatible with Dell Optiplex 3020 7020 9020, Precision T1700, PowerEdge T20, L290AM-00 PS-3291-1DF H290EM-00 H290AM-00, P/N RVTHD KPRG9 HYV3H D290A001L

This brand-new 290W mini tower power supply acts as a perfect OEM replacement for Dell Optiplex 3020, 7020, 9020 desktops, Precision T1700 workstations and PowerEdge T20 entry-level servers. It can directly replace original power supply models L290AM-00, PS-3291-1DF, H290EM-00, H290AM-00 and matches Dell spare part codes RVTHD, KPRG9, HYV3H, D290A001L.

Manufactured with high-grade industrial internal circuit components, this PSU delivers low-ripple steady power output to fully protect motherboard, CPU, memory and storage hardware under sustained office and light server workloads. Built-in intelligent multi-protection circuits will instantly shut down power supply once abnormal voltage, overload or overheating is detected to avoid irreversible hardware damage.

Equipped with a high-airflow silent cooling fan and thickened internal heat sink, it efficiently dissipates internal heat even under continuous high-load running while maintaining low operating noise fit for office environments. All power cable interfaces and installation specifications strictly follow Dell factory standards, no wiring adjustments or extra adapters needed for quick installation. Each unit passes strict aging, voltage stability and safety tests before delivery, meeting OEM reliability criteria for corporate computer maintenance and defective mini tower power supply replacement.