Case for Dell PU052 Optiplex 755 SFF Small Form Factor Desktop Motherboard | DELL Technologies
i found this dell optiplex 755 in a scrap yard perfectly functioning{came with side panel just have it off} its ungodly slow with only a single stick of ddr2 2gb ram and
Dell OptiPlex 755 Repair - iFixit
Dell Optiplex 755 Desktop computer Fast Core 2 Duo 2.93GH windows 7 - CNC - WIFI | eBay
How do I install a power supply on an OptiPlex 755 mini tower? | DELL Technologies
OptiPlex 755 case will not open | DELL Technologies