The difference between a DIN and a Yoke regulator is the way it attaches to a scuba tank. Details on which regulator is better and why.
Trident DIN to Yoke Regulator Converter, Fill Type
DIN versus Yoke (A-clamp) Scuba Diving Regulators - which is
Scuba Regulator Piston First Stage (YOKE & DIN)
DIN Connectors Are No Yoke - Divers Alert Network
Understanding the Difference Between DIN and Yoke Regulators
The Difference Between DIN Vs Yoke Regulators
DIN & Yoke Tank Pressure Checker - Scuba
Scuba Regulator Piston First Stage (YOKE DIN) Dive Gauges, 58% OFF
DIN V Yoke - Aum Scuba
DIN Valve for SCUBA VS Yoke Valve