Secure. Flexible. Yours.
Powerful, office-ready desktop featuring 2nd Gen Intel® Core™ processors and four chassis options.


Your IT dream machine
Bring cutting-edge security, manageability and services to your organization with the Dell™ OptiPlex™ 990 desktop.- Ease deployment across your organization by letting Dell Custom Factory Integration service add the applications, peripherals, asset tags and security labels you need.
- Get control from virtually anywhere, anytime with in-band and out-of-band management solutions to empower IT.
- Help save time and money with the Dell KACE™ family of systems management appliances.
- Gain outstanding security with encryption options, a security lock slot and chassis intrusion switch.
Powerful options that unlock user potential
Your organization relies on stable, high-performing desktops to get work done each day. Help your workforce's productivity soar with OptiPlex™ 990 premier performance and flexible solutions for virtually any work environment. | Work fast with the high-performing OptiPlex desktop featuring the Intel® Core™ vPro™ processor family. | ![]() | Experience powerful multitasking with support for up to four connected displays. |
![]() | Choose the graphics options your work demands with dual discrete graphics slots (single PCIe x4 and single PCIe x16) for the mini tower, desktop and small form factor versions. | ![]() | Enjoy immediate productivity with support for cloud computing and Dell Flexible Computing solutions. |

An efficient design for any workspace
With four sizes to choose from — mini tower, Desktop, small form factor and ultrasmall form factor — OptiPlex™ 990 blends seamlessly into virtually any office environment and is designed to respect our planet and your budget.- Save valuable desk space by combining the ultrasmall form factor design and all-in-one stand, which securely mounts OptiPlex 990 to the back of a monitor.
- Help reduce energy costs with this Energy Star® 5.0-qualified desktop, which has 90 percent efficient power supply option units and Dell™ Energy Smart Power Management settings.
- Help reduce and reuse waste with the EPEAT™ Gold-registered OptiPlex 990, which features 10 percent post-consumer recycled plastic in its chassis and small form factor comes in recyclable packaging*.
Processor
- Intel® Core™ i7 (2600)
Intel® Core™ i5 (2500, 2400)
Operating System
- Windows® 7 Professional 32bit (English) (EMRP)
Windows® 7 Professional 64bit (English) (EMRP)
Windows® 7 Ultimate 64bit (English)
Windows® 7 Ultimate 32bit (English)
Hard Drive
- Up to 2000GB SATA hard drive (7200RPM)
Chipset
- Intel® Q67 Express Chipset
Optical Drive
- DVD+/-RW
DVD-ROM
Dell 19 in 1 Media Card Reader (MT & DT only)
Video Card
- Integrated Graphics
512MB AMD RADEON HD 6350 Dual VGA, Low Profile
512MB AMD RADEON HD 6350 Dual DVI, Low Profile
DUAL 512MB AMD RADEON HD 6350 Dual VGA, Low Profile
DUAL 512MB AMD RADEON HD 6350 Dual DVI, Low Profile
1GB AMD RADEON HD 6450 1 DP & 1 DVI, No adapter , Low Profile
DUAL 1GB AMD RADEON HD 6450 1 DP & 1 DVI, No adapter , Low Profile
1GB AMD RADEON HD 6450 1 DP & 1 DVI with DP to DVI adapter, DVI-VGA adapter , Low Profile
DUAL 1GB AMD RADEON HD 6450 1 DP & 1 DVI with DP to DVI adapter, DVI-VGA adapter, Low Profile
512MB AMD RADEON HD 6350 Dual VGA, Full Height
512MB AMD RADEON HD 6350 Dual DVI, Full Height
DUAL 512MB AMD RADEON HD 6350 Dual DVI, Full Height
DUAL 512MB AMD RADEON HD 6350 Dual VGA adapter, Full Height
1GB AMD RADEON HD 6450 1 DP & 1 DVI, No adapter , Full Height
1GB AMD RADEON HD 6450 1 DP & 1 DVI with DP to DVI adapter, DVI-VGA adapter , Full Height
DUAL 1GB AMD RADEON HD 6450 1 DP & 1 DVI with DP to DVI adapter, DVI-VGA adapter , Full Height
1GB AMD RADEON HD 6670 Graphics 1 DP & 1 DVI & 1 VGA with 1 DP to DVI adapter, Full Height
Ports
- MT & DT only
10 External USB 2.0 ports and 1 Internal USB 2.0
MT
1 Serial; 1 RJ-45; 1 VGA; 1 DisplayPort; 2 PS/2;
2 Line-in (stereo/microphone), 2 Line-out (headphone/speaker), optional Parallel/2nd Serial PCIe card
DT & SFF
Optional 2nd Serial PCIe card
MT & DT
Optional 1394a PCI card optional USB 3.0 PCIe card
Ports, Slots & Chassis
- MINITOWER
Dimensions (H x W x D) Inches/(cm) : 14.2 x 6.9 x 16.4 / (36.0 x 17.5 x 41.7)
Min. Weight (lbs/kg) : 19.55 / 8.87
Number of Bays : 2 internal 3.5" 2 external 5.25"
Expansion Slots : 1 full height PCIe x16 1 full height PCIe x16 (wired x 4) 1 full height PCIe x1 1 full height PCI
Power Supply6 Unit (PSU) : Standard 265W PSU or optional 265W up to 90% Efficient PSU; Energy Star 5.0 compliant, Active PFC
DESKTOP
Dimensions (H x W x D) Inches/(cm) : 14.2 x 4.0 x 16.1 / (36.0 x 10.2 x 41.0)
Min. Weight (lbs/kg) : 16.67 / 7.56
Number of Bays : 1 internal 3.5" 1 external 5.25"
Expansion Slots : 1 half height PCIe x16 1 half height PCIe x16 (wired x 4) 1 half height PCIe x1 1 half height PCI
Power Supply6 Unit (PSU) : Standard 250W PSU or optional 250W up to 90% Efficient PSU; Energy Star 5.0 compliant, Active PFC
SMALL FORM FACTOR (SFF)
Dimensions (H x W x D) Inches/(cm) : 11.4 x 3.7 x 12.3 / (29.0 x 9.3 x 31.2)
Min. Weight (lbs/kg) : 12.57 /5.70
Number of Bays : 1 internal 3.5" 1 external 5.25" (slimline)
Expansion Slots : 1 half height PCIe x16 1 half height PCIe x16 (wired x 4)
Power Supply6 Unit (PSU) : Standard 240W PSU or optional 240W up to 90% Efficient PSU; Energy Star 5.0 compliant, Active PFC
ULTRA SMALL FORM FACTOR (USFF)
Dimensions (H x W x D) Inches/(cm) : 9.3 x 2.6 x 9.4 / (23.7 x 6.5 x 24.0)
Min. Weight (lbs/kg) : 7.20 / 3.27
Number of Bays : 1 internal 2.5" 1 external 5.25" (slimline)
Expansion Slots : 1 miniPCIe connector
Power Supply6 Unit (PSU) : 200W up to 90% Efficient PSU, ENERGY STAR® 5.0 compliant, Active PFC
Standard I/O Ports
MT & DT, SFF
10 External USB 2.0 ports and 1 Internal USB 2.0
1 Serial; 1 RJ-45; 1 VGA; 1 DisplayPort; 2 PS/2; 2 Line-in (stereo/microphone), 2 Line-out (headphone/speaker), optional Parallel/2nd Serial PCIe card
Optional 2nd Serial PCIe card
1 Serial; 1 RJ-45; 1 VGA; 1 DisplayPort; 2 Line-in (stereo/microphone), 2 Line-out (headphone/speaker)
USFF
7 External USB2.0 ports
MT & DT
optional 1394a PCI card
optional USB 3.0 PCIe card
Peripheral Options
Graphics Options :
Integrated Intel® HD Graphics 2000 [with iCore Dual/Quad core class CPU-GPU combo]
Optional 1GB AMD RADEON HD 6670 (MT only)
Optional 1GB AMD RADEON HD 6450
Optional 512MB AMD RADEON HD 6350
Monitors:
Dell Entry Standard and Widescreen Flat Panel Analog:
Dell E170S, E190S, E1910H, E1911, E2011H, E2211H
Dell Professional Digital Standard and Widescreen Flat Panel:
Dell P170S, P190S, P1911, P2011H, P2211H, P2311H
Keyboards:
Dell USB Entry Keyboard, Dell Multimedia Pro Keyboard, Dell Smartcard Keyboard
Mouse:
Dell USB Optical Mouse, Dell Laser Mouse
Audio Speakers:
Internal Dell Business audio speaker, Dell AX210 2.0 and Dell AX510 Sound Bar Speakers
Security
- Trusted Platform Module* (TPM) 1.2
Dell Data Protection / Access
Chassis lock slot support
Optional Chassis Intrusion Switch
Setup/BIOS Password
I/O Interface Security
Optional Smart Card keyboards
Intel® Trusted Execution Technology
Regulatory
- Regulatory Model (Mini-Tower): D09M
Regulatory Type (Mini-Tower): D09M001
Regulatory Model (Desktop): D05D
Regulatory Type (Desktop): D05D001
Regulatory Model (Small Form Factor): D03S
Regulatory Type (Small Form Factor): D03S001
Regulatory Model (Ultra Small Form Factor): D01U
Regulatory Type (Ultra Small Form Factor): D01U002
Product Safety, EMC and Environmental Datasheets
Dell Regulatory Compliance Home Page
Dell and the Environment
Environmental and Regulatory Standards
Environmental Standards (eco-labels):
Energy Star® 5.0, EPEAT GOLD®, CECP, TCO 05, WEEE, Japan Energy Law, Japan Green PC, South Korea Eco-label, EU RoHS, China RoHS, Blue Angel
Other Environmental Options:
Dell Energy Smart settings; Carbon Off-set; System Recycle (Asset Recovery Service)

OptiPlex 990 DT
The OptiPlex™ 990 desktop is a good fit for businesses that have adequate desktop space and desire a high level of expandability. It includes four expansion slots and two media drive bays.
Dimensions: (H x W x D) Inches/(cm)
Inches: 14.2 x 4.0 x 16.1
Cm: (36.0 x 10.2 x 41.0)
Number of bays:
- 1 internal 3.5”
- 1 external 5.25”
Expansion slots:
- 1 half height PCIe x16
- 1 half height PCIe x16 (wired x 4)
- 1 half height PCIe x1
- 1 half height PCI
Power supply unit (PSU) : Standard 250W PSU or optional 250W up to 90 percent efficient PSU; Energy Star® 5.0 compliant, Active PFC

OptiPlex 990 MT
An efficient design for any workspace
The OptiPlex™ 990 mini tower helps organizations who make expansion a priority. It comes standard with four bays and four expansion slots, and includes built-in hand grips.
Dimensions: (H x W x D) Inches/(cm)
Inches: 14.2 x 6.9 x 16.4
Cm: (36.0 x 17.5 x 41.7)
Number of bays:
- 2 internal 3.5”
- 2 external 5.25”
Expansion slots:
- 1 full height PCIe x16
- 1 full height PCIe x16 (wired x 4)
- 1 full height PCIe x1
- 1 full height PCI
Power supply unit (PSU) : Standard 265W PSU or optional 265W up to 90 percent efficient PSU; Energy Star® 5.0 compliant, Active PFC

OptiPlex 990 SFF
The OptiPlex™ 990 small form factor allows for an AIO stand and is perfect for deployment in small places. The small form factor has two expansion slots and two bays.
Dimensions: (H x W x D) Inches/(cm)
Inches: 11.4 x 3.7 x 12.3
Cm: (29.0 x 9.3 x 31.2 )
Number of bays:
- 1 internal 3.5”
- 1 external 5.25” (slimline)
Expansion slots:
- 1 half height PCIe x16
- 1 half height PCIe x16 (wired x 4)
Power supply unit (PSU) : Standard 240W PSU or optional 240W up to 90 percent efficient PSU; Energy Star® 5.0 compliant, Active PFC

OptiPlex 990 USFF
The compact OptiPlex™ 990 ultrasmall form factor doesn’t have expansion slots but does have one internal bay. Its diminutive size means it can be deployed in space-constrained locations and out of sight.
Dimensions: (H x W x D) Inches/(cm)
Inches: 9.3 x 2.6 x 9.4
Cm: (23.7 x 6.5 x 24.0)
Number of bays:
- 1 internal 2.5”
- 1 external 5.25” (slimline)
Expansion slots:
1 miniPCIe connector
Power supply unit (PSU): 200W up to 90 percent efficient PSU, ENERGY STAR® 5.0 compliant, Active PFC








