DELL OptiPlex 755 2.66G 2G 320 W7H desktop PC

OptiPlex 755 business desktop

The DELL OptiPlex 755 is a refurbished small-form-factor desktop aimed at office environments that need a compact, quiet system for everyday productivity. It runs an Intel Core 2 Duo processor at 2.66 GHz with 2 GB of memory and a 320 GB hard drive. Windows 10 Home is pre-installed and a Microsoft Windows 11 Pro upgrade path is noted. The integrated Intel GMA 3100 graphics and Gigabit Ethernet handle typical business workloads.

Who this suits and who it does not

This unit fits buyers who want a ready-to-use Windows 10 PC for document editing, email and legacy line-of-business applications. It is not for users who need discrete graphics performance, modern gaming capability or more than the installed 2 GB of memory without sourcing compatible modules separately. The four DIMM slots are already populated, so any memory increase requires replacing the existing sticks. The 275 W power supply and small chassis also rule out most add-in cards that need supplementary power.

Deciding specification: installed memory

The critical detail is that 2 GB is installed across four occupied 240-pin DIMM slots in a 512 MB × 4 arrangement, leaving zero free slots for simple expansion. If the intended workload runs acceptably in 2 GB this desktop is a match; if more memory is required the buyer must plan a full module replacement rather than an upgrade.