PRL-760C4/PRL-760C-120/PRL-760C-220 is obsolete.
The PRL-760E-120/220 replaces the PRL-760C-120 and the PRL-760C-220 in all applications except when powering a PRL-470D or PRL-177A series product, both of which ship with the required supply.
Please contact the factory if you need to order a PRL-760C-120 or PRL-760D-120 for legacy support.