Thats reassuring (kind of). Its an, well read this:

50V 20A H Bridge Speedo - Part No: 1502-010
Shipping Weight 0.130 Kg

The MD03 is a medium power motor driver, designed to supply power beyond that of any of the low power single chip H-Bridges that exist. Main features are ease of use and flexibility. The motors power is controlled by Pulse Width Modulation (PWM) of the H-Bridge at a frequency of 7.8KHz.
The 15v MOSFET drive voltage is generated onboard with a charge pump, so the module requires only two supply voltages.

Its £50.00 so ok value.

Thanks,

Alex