Multitester tested for voltage. This is a voltage EQUIVALENT adapter for Hayes Optima modem AC input: 120VAC output: 9VAC (amps can be higher but never lower). Please check your device power requirements prior to purchase. Questions are encouraged. Photo is generic. Shape, size and color may differ. Special heavy wrapping is provided to protect the prongs.S H in the contiguous USA is $10.(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 5 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 5 day drop-off time800ma. Thankyou.