A list of TCO certified HP products can be found at www.hp.com/go/sustainability_ecolabels. To check if a specific product is TCO certified, one can also try at https://tcocertified.com/product-finder/. 

Please note, that HP devices are certified as per TCO in their original state when shipped:

1. If a User changes any component in the device, this will invalidate the certification

2. If a User wishes to combine components from different TCO certified devices to configure their own device, this will also invalidate the certification