This is not a digitally signed part. Installing a replacement mechatronics PCA will not cause serial number conflicts/induce part mismatch error codes. You can freely interchange power supply units in the T1700, T1708, Z6, Z9+ series printers. 

T8W15-67009 (diagram figure 2)

1-Year Warranty

Condition: Refurbished, live-tested

This part is the direct replacement part for the Mechatronics PCA for the HP Designjet T1700, T1708, Z6, and Z9+ printers. Toll-free technical support available (USA). Includes 1 year warranty. 

T8W16-80040