Use the HP Z Turbo Drive Thermal Solution (Z1 G3) with your HP Z1 G3 Workstation as a one-piece heatsink when you add up to M.2 drives as after-market options.
The HP Z6 G4 Memory Cooling Solution can be installed on any HP Z6 G4 Workstation configuration for improved system acoustics, but it is required on HP Z6 G4 Workstations with dual-processor config...