Office Basics RM-OB-6151-00 black inkjet cartridge equivalent to HP no 338. OEM: C8765E. For a low-cost alternative to the overpriced branded cartridges, try the Q-Connect cartridge range. The Q-Connect HP No.338 Black Inkjet Cartridge provides the same high quality ink that you would expect from the bigger brands but without the expense. Providing you with stark lines and clearly defined images, this cartridge provides results that are almost indistinguishable from the branded cartridge. The range of tones that can be produced is equally as high and leads to the same quality results.