Dell WF809 - Desktop Motherboard for OptiPlex GX745 SFF
Refurbished: Genuine Dell Optiplex 755 SFF Small Factor Form Motherboard LGA755 JR269 PU052 - Newegg.com
A-Tech 8GB KIT (4 x 2GB) for Dell Optiplex 740 745c 755 DT/MT/SFF 760 DT/MT/ SFF 760 Series (Desktop Mini Tower and Small Form Factor) DIMM DDR2 Non-ECC PC2-6400 800MHz RAM Memory at
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Refurbished: Dell Optiplex 755 Small Form Factor Desktop (R2/Ready for Reuse) with Intel Celeron 430@1.80GHz, 2GB RAM, 80GB HD and licensed Windows 7 Home Premium from a Microsoft Authorized Refurbisher - Newegg.com
0PU052 0JR269 For Dell Optiplex 755 SFF PU052 JR269 Desktop System Motherboard Fully Tested - AliExpress
How to tell old optiplex 745/755/760/780 BTX motherboard form factor - Dell Community
WTS: Genuine Dell OptiPlex 755 SFF Small Form Factor Motherboard PU052 | Tradeloop