Multitester tested for voltage. This is a voltage EQUIVALENT version adapter for Motorola modems with an input: AC 120VAC and DC output: 12VDC 750mA (12volt DC 0.75A). Amperage can be higher, but never lower. Round barrel connector with a hollow POSITIVE center. Photo is generic. Shape, size or color may differ from photo. Special heavy wrapping is provided to protect the prongs. 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.