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Small black desktop tower, micro form factor, matte finish

DELL

DELL OptiPlex 3090 Micro i3-10100T 8GB DDR4 500GB HDD Windows 11 Pro desktop PC

SKU CH-03N0-YPGZX

Micro desktop with an Intel Core i3-10100T processor, 8 GB DDR4 memory, 500 GB HDD, Intel UHD Graphics, Wi-Fi 6 and Bluetooth 5.1 running Windows 11 Pro

  • TypeStudent / Home Office
  • ColorBlack
  • Memory8 GB DDR4
  • AudioUniversal Audio Jack
  • MonitorMonitor not included
  • KeyboardUSB keyboard
  • Compact micro form factor saves desk space
  • Intel Core i3-10100T quad-core up to 3.80GHz handles everyday tasks
  • 8GB DDR4 3200MHz memory supports smooth multitasking
  • Wi-Fi 6 and Bluetooth 5.1 give fast wireless connectivity
  • Windows 11 Pro pre-installed for professional features

Micro form-factor desktop for home and student use

The Dell OptiPlex 3090 Micro fits into tight spaces while delivering a 10th Generation Intel Core i3-10100T quad-core processor that reaches 3.80 GHz. Eight gigabytes of DDR4 3200 memory and a 500 GB hard drive provide enough capacity for everyday documents, web browsing and video calls. Windows 11 Pro is pre-installed and the system includes a USB keyboard, Intel Wi-Fi 6 AX201 and Bluetooth 5.1 connectivity.

Upgrade from an older micro tower or all-in-one

Replacing a previous-generation micro desktop with this 35 W platform gives a noticeable lift in single-thread responsiveness and wireless speed thanks to dual-band Wi-Fi 6. The jump is worth it when your current machine struggles with multiple browser tabs, video conferencing or slow boot times on a mechanical drive. Integrated Intel UHD Graphics handles standard office workloads and 4K playback without a discrete card.

Check power and peripheral requirements before

The unit ships with a 65 W adapter rated up to 87 % efficiency, so verify that your desk outlet or power strip can accommodate the brick. No monitor is included; ensure you have a display with HDMI or DisplayPort input and a suitable cable. The chassis uses a single 8 GB DDR4 module, leaving one slot open if you plan to add more memory later.

Highlights

  • Compact micro form factor saves desk space
  • Intel Core i3-10100T quad-core up to 3.80GHz handles everyday tasks
  • 8GB DDR4 3200MHz memory supports smooth multitasking
  • Wi-Fi 6 and Bluetooth 5.1 give fast wireless connectivity
  • Windows 11 Pro pre-installed for professional features

Specifications

BrandDELL
ModelOptiPlex 3090
Part NumberOPT0146779-R0020589-SA
TypeStudent / Home Office
ColorBlack
Memory8 GB DDR4
AudioUniversal Audio Jack
MonitorMonitor not included
KeyboardUSB keyboard
Operating SystemWindows 11 Pro
CPU TypeIntel Core i3
CPU Name3.00GHz
CPU Socket TypeBlack
GPU/VGA TypeIntel UHD Graphics
Memory SpeedDDR4 3200
Memory Spec8
HDD500GB
Optical Drive TypeNo
Optical Drive SpecNo
Screen SizeNo Screen
LAN SpeedNo
WLAN802.11ax Wireless LAN
BluetoothBluetooth 5.1
Video PortsOptional Port: VGA/DP1.4/HDMI 2.0
Rear Audio PortsUniversal Audio Jack
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse
Weight8.37

Questions about this item

What are the physical dimensions of the OptiPlex 3090 Micro chassis?

The OptiPlex 3090 Micro uses a micro form factor chassis designed for compact spaces. It supports VESA mounting behind compatible monitors or can be placed horizontally on a desk with the included stand.

How do I install additional DDR4 memory in this desktop, and which step is commonly missed?

Open the chassis by releasing the latch, insert the DDR4 3200 MHz module into the vacant SODIMM slot at a 45-degree angle, then press down until it clicks. The step often missed is fully seating the module before closing the case.

When will the 500 GB hard drive or the 8 GB DDR4 memory need replacement?

The 500 GB HDD is a mechanical drive that may require replacement after several years of heavy use due to wear. The 8 GB DDR4 module can be upgraded later if more memory is needed for newer applications.

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