The original Hewlett Packard CB384A / HP 824A black drum unit is professionally designed to produce the highest quality printouts for your Hewlett Packard laser printer. The brand new, original CB384A is an ideal choice drum cartridge for your Hewlett Packard printer. HP 824A drums deliver excellent, dependable results, page after page. You can depend on HP 824A laser drum units. 100% Satisfaction Guarantee.