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Black and silver Dell OptiPlex 990 mini tower desktop with DVD-RW drive

DELL

DELL OptiPlex 990 Mini Tower i7-2600 16 GB DDR3 128 GB SSD desktop PC

SKU CH-SRNA-PPRZK

A compact desktop with a quad-core i7-2600, 16 GB DDR3, 128 GB SSD and Windows 10 Pro for office tasks

  • Screen sizeNo Screen
  • ProcessorIntel Core i7 2nd Gen
  • Memory size16 GB DDR3 Desktop RAM
  • Storage drive2.5 in 128 GB Solid State (SSD)
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q67
  • Quad-core i7-2600 handles multi-tasking efficiently
  • 16 GB DDR3 memory supports smooth application switching
  • 128 GB 2.5" SSD provides fast boot and load times
  • Windows 10 Pro 64-bit pre-installed for immediate productivity
  • USB keyboard and mouse included for ready-to-use setup

Ready for office and study tasks

The Dell OptiPlex 990 Mini Tower ships as a new desktop with an Intel Core i7-2600 quad-core processor running at 3.40 GHz with a 3.90 GHz turbo boost. It includes 16 GB of DDR3 memory and a 128 GB 2.5-inch solid-state drive. Windows 10 Pro 64-bit is pre-installed alongside a DVD-RW drive, Gigabit Ethernet, and bundled USB keyboard and mouse.

Upgrade from slower storage or less memory

The solid-state drive replaces a traditional hard drive to cut boot and application load times. The 16 GB DDR3 configuration doubles the 8 GB baseline, giving headroom for heavier multitasking and larger datasets. Buyers who need more storage capacity or a discrete graphics card for modern 3D workloads should look elsewhere.

Steady output within a 265 W power envelope

The 265 W power supply feeds the CPU, integrated Intel HD Graphics 2000, memory and SSD without requiring auxiliary connectors. Under sustained load the quad-core processor maintains its rated clocks while the integrated graphics handle display output and light compute tasks. Thermal performance is managed by the mini-tower chassis airflow design.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $252.99
Cheaper than about 80% of the 14,711 comparable items (median $494.99).
Memory size 16 GB DDR3 Desktop RAM
Typical for this category: the median of 5,840 items is 16 GB.
RAM capacity 16 GB DDR3
Typical for this category: the median of 13,125 items is 16 GB.

Specifications

Product
Brand nameDELL
Product lineOptiPlex
Model name990
Part number990
Product typeStudent / Home Office
Recommended useConsumer
Product colorBlack/Silver
Processor
ProcessorIntel Core i7 2nd Gen
CPUIntel 2nd Gen i7-2600
CPU model3.4 GHz
CPU socketLGA 1155
ChipsetIntel Q67
Memory
Memory size16 GB DDR3 Desktop RAM
RAM capacity16 GB DDR3
RAM type and speedDDR3
Memory configuration4 GB x 4
Total memory slots4
Free memory slots0
Memory slots0/4
Max supported RAM16 GB
Storage
Storage drive2.5 in 128 GB Solid State (SSD)
Hard driveNo
Storage configuration2.5 in 128 GB Solid State (SSD)
Disc drive16X DVD±RW Drive
Drive interfaceSATA
Optical driveDVD-R/RW
Display
Screen sizeNo Screen
Graphics
GraphicsIntel HD Graphics 2000
GPUIntel HD Graphics 2000
GPU interfaceIntegrated video
Audio & video
SoundSound card - Integrated
Audio chipIntegrated
Connectivity
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Ethernet controllerIntegrated
Bluetooth supportYes
Ports & slots
Front USB ports4
PS/2 ports2
Video connectors1 VGA, 1 Display Port
Rear USB ports6
Ethernet port1 port
Rear audio jacks1x Headphone, 1x Microphone, 1x Line In
Power
Power supply265 W
Size & build
Form factorDIMM 240-pin
Overall dimensions14.2 × 6.9 × 16.4
Product weight19.55 lb (8.87 kg)
In the box
Included monitorNot included
Bundled mouseUSB Mouse
Pointing deviceUSB Mouse
Software
Operating systemWindows 10 Pro
Pre-installed softwareWindows 10 Pro Restore Media
More details
KeyboardUSB Keyboard
Keyboard typeUSB Keyboard

Questions about this item

What size internal drive bay does the OptiPlex 990 Mini Tower use for the 128 GB SSD?

The 128 GB solid-state drive is a 2.5 inch unit that fits the standard internal drive bay in this Mini Tower chassis.

How is the 16 GB DDR3 memory installed, and what step is often missed?

The 16 GB of DDR3 RAM occupies the 240-pin DIMM slots; the step people miss is pressing each module down firmly until the retention clips on both ends click into place.

What maintenance or replacement will the 265 W power supply need later?

The 265 W power supply contains electrolytic capacitors that age over time; plan to replace the unit if the system becomes unstable under load or fails to start reliably.

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