As a convenience we offer a slection of AC/DC power supplies. Most of the power supplies we stock at this time are 48V power supplies with universal ac voltage inputs. Two of these power supplies (or more) may be wired in series for up to 96VDC, for example. Do not wire the power supplies in parallel as they do not have parallel operation capability. Two power supplies can also be wired to obtain, for example, +/-48V for bipolar applications. In addition we stock an inexpensvie 12V power supply with an universal input for powering up to 10 fans. We do not stock but can obtain similar power supplies in other voltages such as 15V or 24V. See our application article AN-44 Connecting Multiple Power Supplies for more details.