On our unit, the kitchen and dining room slides are hydraulic. All the other slides are electric. I believe they are Schwintek. If memory serves, you can tell by the upper and lower gear mechanism on each side of the slide. It's a rail that looks like a worm gear pattern. Other brands also use a cable operated system which you can tell by visibly seeing the cable where the Schwintek slides have a rail. If this is not correct, hopefully someone will correct me.
Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW