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Black mini-tower desktop with silver accents, DVD drive, USB keyboard and wireless dongle

DELL

DELL OptiPlex 790 Mini Tower i5-2400 16GB DDR3 256GB SSD 1TB HDD desktop PC

SKU CH-PMEN-D8486

A compact desktop with a quad-core Intel i5-2400, 16 GB DDR3, 256 GB SSD plus 1 TB hard drive, DVD-RW, Wi-Fi dongle and Windows 10 Pro

  • TypeStudent / Home Office
  • Form FactorDIMM 240-pin
  • UsageConsumer
  • ColorBlack/Silver
  • ProcessorIntel 2nd Gen i5-2400
  • Processor Main Features64 bit Quad-Core Processor

Memory Capacity 16GB DDR3

  • Quad-core Intel i5-2400 handles everyday multitasking smoothly
  • 16 GB DDR3 memory keeps multiple apps responsive
  • 256 GB SSD plus 1 TB HDD gives speed and capacity
  • DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit pre-installed with licence

Dell OptiPlex 790 Mini Tower Desktop PC

This Dell OptiPlex 790 Mini Tower is a desktop computer built around an Intel 2nd Gen i5-2400 quad-core processor running at 3.10 GHz with a 3.40 GHz turbo boost. It comes with 16 GB of DDR3 memory, a 256 GB SSD, and a 1 TB hard drive. Windows 10 Pro 64-bit is pre-installed.

Suits everyday office and home tasks.

The system handles web browsing, document editing, and video playback using the integrated Intel HD Graphics 2000. It is not for users who need dedicated graphics performance for modern gaming or intensive 3D rendering. The 265 W power supply limits the addition of high-power expansion cards.

Dual-drive storage with 256 GB SSD and 1 TB HDD

A 2.5-inch 256 GB solid-state drive provides fast boot and application loading, while a 3.5-inch 1 TB hard drive adds bulk capacity for files and media. Both drives are installed and ready to use.

Highlights

  • Quad-core Intel i5-2400 handles everyday multitasking smoothly
  • 16 GB DDR3 memory keeps multiple apps responsive
  • 256 GB SSD plus 1 TB HDD gives speed and capacity
  • DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit pre-installed with licence

Specifications

BrandDELL
SeriesOptiPlex
Model790
Part Number790/990
TypeStudent / Home Office
Form FactorDIMM 240-pin
UsageConsumer
ColorBlack/Silver
ProcessorIntel 2nd Gen i5-2400
Processor Main Features64 bit Quad-Core Processor
Memory16 GB DDR3 Desktop RAM
Storage2.5" 256 GB Solid State + 3.5" 1TB Hard Drive
Optical DriveDVD±RW Drive
GraphicsIntel HD Graphics 2000
AudioSound card - Integrated
EthernetGigabit Ethernet
Wireless CardUSB Dongle
Power Supply265W
CaseMini Tower
KeyboardUSB Keyboard
MouseUSB Mouse
Operating SystemWindows 10 Pro
Software IncludedWindows 10 Installed
ChipsetIntel Q67
CPU TypeIntel Core i5 2nd Gen
Installed Qty1
Max Supported Qty1
CPU Name3.10GHz
CPU Socket TypeLGA1155
CPU Main Features64 bit Processor
GPU/VGA TypeIntel HD Graphics 2000
Graphics InterfaceIntegrated video
Memory Capacity16GB DDR3
Memory SpeedDDR3
Memory Spec4 GB x 4
Memory Slot (Total)4
Memory Slot (Available)0
Memory Slots (Available/Total)0/4
Maximum Memory Supported16 GB
SSD256GB
HDD1TB
HDD InterfaceSATA
Storage Spec2.5" 256 GB Solid State + 3.5" 1TB Hard Drive
Optical Drive TypeDVD-R/RW
Screen SizeNo Screen
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
BluetoothYes
Front USB4
Front Audio Ports1x Headphone, 1x Microphone, 1x Line In
PS/22
Video Ports1 VGA, 1 Display Port
Rear USB6
RJ451 port
Rear Audio Ports1x Headphone, 1x Microphone, 1x Line In
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse
Dimensions (H x W x D)24 x 22 x 12
Weight24 lbs
Package ContentsUSB Keyboard/Mouse and Power Cord

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 265W power supply limit the i5-2400 under sustained heavy loads?

The 265W unit is sized for the stock i5-2400 and integrated graphics; adding a discrete GPU or overclocking would exceed its capacity.

How much noise and heat should I expect from the Mini Tower running all day with the stock cooler?

The Intel HD 2000 graphics and 265W supply keep thermal output modest; the single rear fan typically stays at low RPM during office workloads.

Does the USB wireless dongle need a free USB port, or is Wi-Fi built into the motherboard?

Wi-Fi is provided only by the external USB dongle, so one USB port must remain available for wireless connectivity.

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