Multitester tested for voltage. The ac POWER CORD is attached and included. This inline adapter is voltage EQUIVALENT to Cisco with the following specs: AC input: 100-240V and DC output: 12V 1.67A (aka: 12VDC 1670mA). Amperage can be higher, but never lower. Round barrel connector with a POSITIVE center. Photo is generic. Shape, size or color may differ from photo. S H in the contiguous USA is $6.(insured shipping). Please see other interesting items by JGrit USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 4 days of receiving cleared payment. How long it takes to deliver to your door is strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 4 day drop-off time. Thankyou.