Yes, works well. Ran them as heaters for a long timr. S9 hardware is getting old though and starting to see lots of failures. Started switching over to S19's running a single board, with a water cooling plate, and PC radiators and pumps for cooling. Huge leap in efficiency and hashrate. If you can pick up a hashboard, control board, water block, and a Nakatomi Mining Loki board, you'd be all set.