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Black Dell OptiPlex 990 mini tower desktop with silver accents, keyboard and mouse included

DELL

DELL OptiPlex 990 Mini Tower i7-2600 8 GB DDR3 128 GB SSD 2TB HDD DVD-RW Win 10 Pro

SKU CH-X0K8-P2J11

A mini-tower desktop with a quad-core i7-2600 at 3.40 GHz, 8 GB DDR3, 128 GB SSD plus 2 TB HDD, DVD-RW and Windows 10 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core i7 2nd Gen
  • Memory size8 GB DDR3
  • Storage drive2.5 128 GB Solid State (SSD) + 2 TB (2,000 GB) Hard Drive
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q67

HDD 2TB

  • Quad-core i7-2600 at 3.40 GHz handles multi-tasking
  • 128 GB SSD plus 2 TB HDD stores apps and files
  • 8 GB DDR3 RAM runs everyday workloads
  • Windows 10 Pro 64-bit ready to use
  • USB keyboard and mouse included in box

OptiPlex 990 Mini Tower Desktop

The Dell OptiPlex 990 Mini Tower is a desktop computer built around an Intel Core i7-2600 processor running at 3.40 GHz with Turbo Boost up to 3.80 GHz. It ships with 8 GB of DDR3 memory, a 128 GB solid-state drive and a 2 TB hard drive. Windows 10 Pro 64-bit is pre-installed and a USB keyboard and mouse are included.

Upgrade From Older Dual-Core Systems

This configuration replaces aging dual-core desktops that struggle with modern multitasking and slow mechanical boot drives. The quad-core i7-2600 and included SSD deliver responsive application launches and smoother background task handling. The jump is worth it when your current machine stalls on everyday office workloads or web browsing with multiple tabs open.

Sustained Load With 265W Power Supply

Under continuous load the 265 W power supply supports the 65 W TDP processor and integrated Intel HD Graphics 2000 without thermal throttling in typical office environments. The mini-tower chassis provides adequate airflow for extended rendering, compilation or backup tasks. The dual-drive layout keeps the operating system on flash storage while the hard drive handles bulk sequential writes.

How it compares

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

Price $436.99
Cheaper than about 55% of the 14,711 comparable items (median $494.99).
Memory size 8 GB DDR3
Lower than about 80% of the 5,840 comparable items (median 16 GB).
RAM capacity 8 GB DDR3
Lower than about 80% of the 13,125 comparable items (median 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
CPU model3.4 GHz
CPU socketLGA 1155
ChipsetIntel Q67
Memory
Memory size8 GB DDR3
RAM capacity8 GB DDR3
RAM type and speedDDR3
Memory configuration2 GB x 4
Total memory slots4
Free memory slots0
Memory slots0/4
Max supported RAM16 GB
Storage
Storage drive2.5 128 GB Solid State (SSD) + 2 TB (2,000 GB) Hard Drive
Hard drive2 TB
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 Ports
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 monitorNO
Bundled mouseUSB Mouse
Pointing deviceUSB Mouse
Software
Operating systemWindows 10 Pro
Pre-installed softwareWindows 10 Pro Instaled
More details
KeyboardUSB Keyboard
Keyboard typeUSB Keyboard

Other versions of this model

5 more in the same range

Questions about this item

What power supply wattage does the OptiPlex 990 Mini Tower require?

The system uses a 265W power supply. Ensure any replacement matches this rating and the proprietary Mini Tower form factor connectors.

How do I install additional DDR3 memory in the 240-pin DIMM slots, and what mistake should I avoid?

Open the chassis, align the notch on the DDR3 module with the 240-pin slot key, and press firmly until the retention clips click. The common error is stopping before the clips engage fully.

When should I consider replacing the 128 GB SSD or 2 TB hard drive?

Replace the SSD if SMART tools report declining health or write endurance nears its limit. Replace the 2 TB hard drive if you hear unusual noises, see reallocated sectors, or experience slow file access.

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