Used Dell Optiplex 755 Tower Intel Core Duo Processor, 4GB RAM, 250GB Hard Drive, DVD-Rom, Windows 10 Professional 64 Bit | lupon.gov.ph
Optiplex 755 USFF cpu and ram upgrade | DELL Technologies
Amazon.com: Dell Optiplex (Intel Core 2 Duo Processor 3.0GHz), New 8GB Memory, 2TB HDD, DVDRW, Windows 10 Home Edition (Certified Refurbishd) : Electronics
Refurbished: Dell Optiplex 755 A Grade Desktop PC with Intel Core 2 Duo 2.66GHz, 4GB RAM, 1TB HDD, DVDRW, Windows 7 Professional 64 Bit, Microsoft Authorized Recertified Desktop PC w/1 Year Warranty - Newegg.ca
Dell Optiplex 755 Core 2 E8400 3.0Ghz 4GB ram 1.0 TB HD Windows XP Pro | eBay
A-Tech 8GB (4X 2GB) Max Memory RAM Kit for Dell OptiPlex 755, 745, 740, (MT, DT, SFF) - DDR2 667MHz PC2-5300 Non-ECC DIMM Upgrade at Amazon.com