This portable power supply unit was a 75-W output product using TOTO's fuel cell system. This fuel cell system is unique as it allows use of coal oil and LP gas as fuel. The power supply unit features 36 cells and its operating temperature reaches 700 °C.

CBC, who provides capital in Mesoscopic Devices, intends to commercialize the portable power supply unit for consumers as early as 2008. The company said its initial goal is to market the product as a power supply unit for cameras in the monitoring camera market, in which it boasts a large share. "It may be a niche market, but we project to achieve unit sales growth by selling the product worldwide," said the company spokesperson.

CBC plans to manufacture this portable power supply unit in Japan. The spokesperson stated the company intends to acquire safety and other necessary approvals for marketing in Japan through conducting proving tests for the portable power supply unit mounting TOTO's cells in 2007.

Mesoscopic Devices plans to soon commercialize this portable power supply unit first for military application, but without using TOTO's cells for it. This is due to TOTO's policy to supply its cells only for consumer or industrial applications. Mesoscopic Devices will, however, advance development of a same-capacity portable power supply unit able to output 250 W using TOTO's cells.