LD Products has added to its Gold Line of premium new-build toner cartridges a whopping 40,000-page extended-yield cartridge for the HP LaserJet Enterprise M605 and M630. HP announces this family of high-speed letter/A4-sized monochrome laser devices in 2014 and 2015 (see “HP LaserJet Enterprise M604, M605, and M606 Feature Many Improvements but No New Supplies”