About Cisco PSA-18U-480 48V DC 0.38A Power Supply to suit 79XX Phones - Used

Cisco power pack / power supply 

Part number: 341-0081-01

Condition: used 

Compatible with 7940, 7941, 7942, 7945, 7961, 7962, 7965, 7970 & 7975 phones 

Input voltage: 100-240V AC 

Output voltage: 48V DC 

Output current: 0.38A

Note: there are several different brands, models and part numbers that are all suitable