Multitester tested for voltage. This is a voltage EQUIVALENT wall mount version with all the electricalrequirements of theAPTIVA or IBMvoltage regulator, power supply, powersupply, inverter, adaptor, adapter, transformer for speakers with the following specs: INPUT:AC 120VandOUTPUT: 9VDC 1A (aka: 9 VoltsDC 1000mA). Amperage may be higher, never lower. Shape, size or color may differ from product photo. Please determine compatibility before looking. Round barrel connector with a hollow POSITIVE center.Special heavy wrapping is provided to protect the prongs. S&H in the contiguous USA is $6.(insured shipping).Please see other interesting products by JGritUSPS 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 strictlywithinUSPS control and not within the control of seller. Please leave 5 stars for seller 4 day drop-off time. Thankyou.