DELL OptiPlex 990 USFF desktop PC Intel Quad-Core i5 2.9-3.30GHz 8GB DDR3 500GB HDD

Compact USFF Desktop for Home Office

The Dell OptiPlex 990 Ultra Small Form Factor desktop delivers a quad-core Intel i5 processor running at 2.9 to 3.30 GHz with 8 GB of DDR3 memory and a 500 GB SATA hard drive. Windows 10 Professional 64-bit is pre-installed with a Certificate of Authenticity. It suits students and home-office users needing a space-saving PC for everyday productivity.

SATA Storage and Integrated Graphics Limits

The 3.5-inch 500 GB hard drive uses a SATA interface, which caps sequential throughput well below modern solid-state speeds. Integrated Intel HD Graphics 2000 or 2500 handles basic video output but cannot accelerate 3D workloads or drive multiple high-resolution displays. Gigabit Ethernet and a USB WiFi adapter provide network connectivity, while the 16X DVD±RW remains the only internal optical option.

Simple Setup with USFF Constraints

A USB keyboard and mouse are included so the system is ready once a monitor is connected. The ultra-small chassis restricts internal upgrades to low-profile cards and 2.5-inch drives, and the 240-pin DDR3 slots limit memory expansion to compatible modules only. Buyers who want more storage bays, a discrete graphics card or standard ATX power supplies should consider a larger form factor.