Current Werks, which specializes in green mobile power storage and charging devices, has introduced two energy-saving USB wall outlets: the Quattro and Duo.

The Quattro (patent pending) is purportedly the first product in the industry that replaces a standard electrical wall outlet with four powerful USB charging ports. The Quattro’s four USB ports deliver a combined output of 22 watts. The Quattro also features a tamper-resistant door that when closed eliminates standby power, also known as vampire power. Additionally, it has the ability to replace four USB AC adapters with one wall outlet.

The Duo (also patent pending) features two in-wall USB charging ports delivering 16 watts of output power from a standard 110V wall outlet. The Duo’s power management design gives the consumer a total of four charging solutions, two USB charging ports and two standard US/CAN sockets from a single wall outlet. This makes the Duo the second most powerful in-wall charging solution available in the market today, surpassed only by the Quattro, according to Current Werks CEO Patrick Manning.. The Duo supports 15 amp and 20 amp wall receptacles.

Shipping January 2012, the Current Werks USB wall outlets are priced at US$39.98 for the Quattro and $24.98 for the Duo. They are both available for preorders today at , The Quattro and Duo will be available in white, light almond and ivory. The Duo can be ordered in regular or decorator style.