Eathtek Replacement 42" Trailing Cable C7770-60274 C7770-60147 for HP DesignJet 500 500PS 510 510PS 800 800PS series For 42 inch only Compatible Model Number: HP DesignJet 500 500PS 510 510PS 800 800PS Plotter Compatible Part Numbers: C7770-60274 C7770-60147 Package includes: 1 set of trailing cable (Two ribbon cables bundled together) All pictures are taken from the real item, please check carefully before bidding.