This is for one Cincon 49.5 to 75 W 4 : 1 Input DC-DC converter CHB75W-24S15 CHB75W-24S15. New from bulk packaging
Input: 9-36vdc
Output: 15vdc
Output Current:
      min: 0mA
      max: 5A
Input Current:
      No load: 50mA
      Full load: 3720mA

We're a surplus store, and we aren't experts with most of this stuff.  So, we don't make any guarantees beyond what's stated in the listing & pictures.
Feel free to contact us with any questions!