Disassemble the Dell Power Supply The same size interface can be universal, and the default model is shipped randomly.
Power supply size: 150×140×86mm
Output interface: motherboard power supply 8PIN; CPU power supply 4PIN
Compatible models: AC290AM-00; H290AM-00; HU290EM-00 L290AM-00
AC290EM-01 B290EM-01 HU290AM-00 and other models
Applicable models: DELL OptiPlex 3020 7020 9020 MT desktop