Works great. Came well packaged and included accessories
For 10MHz Double Oven OCXO Frequency Standard|2x 10mhz
This works great. I haven't independently verified the frequency accuracy but have had no problems with other lab-style devices using its 10MHz output so I assume it is good. There is a jumper to select 12V or 15V supply; there's silkscreen to indicate this but no other documentation (I don't think any other documentation is really needed though). The seller included two BNC-to-SMA adapters which was a nice touch, and the board also includes standoffs with screws and washers! Really happy with this purchase. It shipped from Hong Kong so it took a couple weeks.