Help IDing this board

[The_Welding_Library_Guy]

I'm in the process of building up a decent electronics shop that I can just walk into after to work and get right to projects with out always waiting for parts to come in the post. To help in this im working on getting a wide ranging competent collection and so i bought a box of random parts and bits from ebay. While going through it I found this little board. I hooked 5v to it and nothing happened. following the traces on the back it looks like the power comes in straight from the pins to the chip with only a ceramic cap in between the chip and neg pin.

[ataradov]

This is a unipolar stepper motor driver board. It comes with those cheapo stepper motors with gear boxes.

Here are some for sale https://www.ebay.com/itm/DC-5V-Stepper-Motor-28BYJ-48-ULN2003-Driver-Test-Module-Board-fit-for-Arduino/264004483327