The Rockets are the only former winners still in the competition after the so-called big-three of South African football were eliminated.
While holders Kaizer Chiefs had already lost in the round of 32 to Stellenbosch, Orlando Pirates were defeated by Motsepe Foundation Championship side Casric Stars, and Mamelodi Sundowns went down to Galaxy.
This is the first time since 2009 that none of the big three have reached the quarter-finals and instead sees Casric and fellow National First Division side Milford and ABC Motsepe side Jacksa Spears take their place in the last eight.
All the quarter-final ties:
AmaZulu vs Casric Stars
Sekhukhune United vs Milford FC
TS Galaxy vs Jacksa Spears
Golden Arrows vs Durban City
