Please allow ~2-3 weeks to dispatch for quality control. Product images are for illustrative purposes only and may contain AI-generated content; they may not represent the final product you receive. Products are subject to the cosmetic grading policy detailed here.
If you are ordering a device that does not include a Windows 11 licence as standard, please check Microsoft's minimum system requirements to confirm if it can be upgraded later should you wish to do so.
Dell OptiPlex 5090 Small Form Factor Desktop Computer
The Dell OptiPlex 5090 SFF desktop delivers exceptional business computing performance with its 11th generation Intel Core i5-11500 processor (6 cores, 2.7GHz base), 8GB DDR4 RAM, and ultra-fast 128GB NVMe SSD storage. This compact small form factor design maximises workspace efficiency while providing enterprise-grade reliability and comprehensive connectivity options. Professionally refurbished by Reboot IT with Windows 11 Pro pre-installed and backed by our comprehensive 12-month warranty for complete confidence.
What Makes the OptiPlex 5090 a Strong Business Desktop Choice?
- 11th Gen Intel i5-11500 processor: Six cores delivering 2.7GHz base performance with Turbo Boost up to 4.6GHz ensures smooth multitasking across MYOB, Xero, Office 365, and multiple browser tabs without system slowdowns.
- 128GB NVMe SSD storage: SK Hynix BC711 solid-state drive boots Windows 11 Pro in under 10 seconds and launches applications instantly, eliminating traditional hard drive bottlenecks that hamper productivity.
- 8GB DDR4 system memory: Handles simultaneous video conferencing, document editing, spreadsheet calculations, and web browsing while maintaining responsive system performance throughout demanding business workdays.
- Small form factor efficiency: Compact 29.2cm footprint saves valuable desk space without sacrificing full desktop computing power, making it ideal for space-conscious modern offices.
- Enterprise-grade construction: Built for corporate environments with robust components designed for continuous operation, ensuring reliable performance under heavy business workloads and extended daily use.
- Windows 11 Pro security: Advanced enterprise security features including BitLocker encryption, Windows Defender, and domain management capabilities protect sensitive business data and ensure compliance.
How Does the OptiPlex 5090 Perform in Daily Business Use?
The 11th generation Intel Core i5-11500 processor represents a significant performance leap over previous generations, delivering exceptional responsiveness across demanding business applications. With six processing cores and intelligent Turbo Boost technology reaching 4.6GHz, this system handles complex Excel spreadsheets, simultaneous MYOB and Xero accounting sessions, and multi-user Teams video calls without performance degradation. The improved architecture provides 19% better performance per clock cycle compared to 10th gen processors, ensuring smooth operation even when running resource-intensive business software alongside multiple Chrome tabs and Outlook email management.
Storage performance transforms the daily computing experience through the SK Hynix BC711 NVMe SSD configuration. This enterprise-grade solid-state drive delivers sequential read speeds exceeding 3,200MB/s, enabling Windows 11 Pro to boot in approximately 8 seconds and launching Microsoft Office applications almost instantaneously. File transfers, database queries, and system updates complete dramatically faster than traditional hard drives, while the SSD's silent operation eliminates mechanical noise typical of conventional desktop systems. The 128GB capacity provides ample space for essential business applications, documents, and system files while maintaining optimal performance levels.
The small form factor design maximises workspace efficiency without compromising connectivity or expansion capabilities. Measuring just 29.2cm × 9.3cm × 29.2cm, the OptiPlex 5090 SFF fits comfortably under monitors, on shelves, or in compact workstation configurations. Despite its reduced footprint, the system provides comprehensive I/O options including multiple USB 3.2 ports, DisplayPort and VGA video outputs for dual-monitor setups, Ethernet connectivity, and audio connections. The vertically-oriented design promotes efficient airflow while the quiet cooling system ensures minimal workplace distraction during operation.
Complete Technical Specifications
| Processor | Intel Core i5-11500 (11th Gen, 6-Core, 2.7GHz base, 4.6GHz Turbo) |
| Memory | 8GB DDR4-3200 (expandable to 64GB) |
| Storage | 128GB SK Hynix BC711 NVMe SSD |
| Graphics | Intel UHD Graphics 750 (integrated) |
| Form Factor | Small Form Factor (SFF) |
| Front I/O | 2x USB 3.2 Gen1, 1x USB 2.0, headphone/mic combo jack |
| Rear I/O | 4x USB 3.2 Gen1, 2x USB 2.0, VGA, DisplayPort 1.4, Ethernet, audio |
| Network | Gigabit Ethernet, Wi-Fi 6 (802.11ax), Bluetooth 5.1 |
| Expansion | 1x PCIe x16 (x4), 1x M.2 2280 SSD slot, 2x SO-DIMM slots |
| Power Supply | 180W 85% efficient external adapter |
| Security | TPM 2.0, Kensington lock slot, BIOS-level security |
| Operating System | Windows 11 Pro (64-bit) |
| Dimensions | 292 × 93 × 292mm (H × W × D) |
| Weight | Approximately 4.2kg |
| Certifications | ENERGY STAR qualified, EPEAT Gold, RCM |
Is the OptiPlex 5090 Right for Your Needs?
✓ Ideal For:
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✗ Consider Alternatives If:
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Understanding Condition Grades and Quality Standards
All OptiPlex 5090 systems undergo identical refurbishment testing regardless of cosmetic grade, ensuring consistent performance and reliability across our entire range.
| A–EXCELLENT | Minimal signs of use with excellent overall appearance. Minor scuffs or light scratches may be present but don't affect functionality or professional appearance. |
| B–GOOD | Visible signs of previous use including moderate scratches, scuffs, or marks. All functionality remains perfect with completely reliable performance. |
Every grade receives our comprehensive 42-point inspection, stress testing, and comes with the same 12-month warranty coverage. Performance and reliability are identical across all condition grades.
Frequently Asked Questions About the OptiPlex 5090
Q: What are the exact dimensions and will it fit in my workspace?
The OptiPlex 5090 SFF measures 292mm high × 93mm wide × 292mm deep, designed for compact desk placement. It can sit vertically beside a monitor or horizontally under a display, requiring minimal desk space while providing full desktop functionality.
Q: How many expansion slots are available for future upgrades?
The system includes one PCIe x16 slot (x4 electrical), one M.2 2280 slot for additional SSD storage, and two SO-DIMM slots supporting up to 64GB total RAM. This provides substantial upgrade flexibility within the compact form factor.
Q: Is this system compatible with Windows 11 and future updates?
Yes, the i5-11500 processor and TPM 2.0 chip meet all Windows 11 system requirements. The system comes with Windows 11 Pro pre-installed and will receive future Microsoft updates and security patches without compatibility issues.
Q: How do the condition grades A-Excellent and B-Good differ?
Both grades have identical performance and functionality. A-Excellent shows minimal cosmetic wear, while B-Good has moderate visible signs of previous use like scratches or scuffs. See our Cosmetic Grading Guide for detailed comparisons.
Q: What testing does the refurbishment process include?
Every system undergoes our Verified Reboot Refurb process including 42-point hardware inspection, stress testing, component verification, and performance benchmarking. All units are cleaned, tested, and certified before dispatch with 12-month warranty coverage.
Q: Can I connect dual monitors to this desktop?
Yes, the OptiPlex 5090 supports dual displays through its DisplayPort 1.4 and VGA outputs. The Intel UHD Graphics 750 can drive two 1080p monitors simultaneously or one 4K display for enhanced productivity workflows.
12-Month Comprehensive Warranty
Every OptiPlex 5090 includes our full 12-month warranty covering all hardware components and functionality. This comprehensive protection ensures complete confidence in your refurbished investment.
Our warranty covers processor, memory, storage, ports, and all internal components. With over 20 years of refurbishment expertise, Reboot IT stands behind every system we sell.
As Australia's trusted refurbished computer specialist since 2001, we provide professional-grade equipment with new-equipment warranty protection, delivering exceptional value without compromising reliability.
Upgradeability and Compatibility Options
The OptiPlex 5090 SFF provides excellent expansion potential within its compact design. Memory can be upgraded from the standard 8GB to a maximum 64GB using the two SO-DIMM slots, supporting DDR4-3200 modules for improved multitasking performance. Storage expansion is available through the unused M.2 2280 slot, allowing installation of additional NVMe SSDs up to 1TB capacity for increased local storage.
The single PCIe x16 slot (x4 electrical) accommodates low-profile expansion cards including network adapters, sound cards, or additional I/O controllers. While the small form factor limits full-height graphics cards, it supports professional-grade low-profile cards for specialised applications. The comprehensive I/O selection ensures compatibility with modern monitors, peripherals, and networking equipment without requiring additional expansion cards.
All standard business peripherals connect seamlessly including keyboards, mice, monitors, printers, and external storage devices. The integrated Wi-Fi 6 and Bluetooth 5.1 support wireless peripherals and modern connectivity standards, while Gigabit Ethernet ensures reliable network performance. USB 3.2 ports provide fast data transfer for external drives and backup solutions.
| Manufacturer Warranty | 3 Months |
| Features | None |
| Item Height | 289.56mm |
| RAM Size | 8GB |
| Graphics Processing Type | Integrated/On-Board Graphics |
| Chipset | Q370 |
| Item Width | 93.98mm |
| Condition | A |
| Model | OPTIPLEX 5060 |
| Type | Desktop |
| Resolution | none |
| Processor | Intel Core i5 8th Gen. |
| Release Date | Q2'18 |
| Processor Model | 8500 |
| Colour | Black |
| Item Weight | 5.25kgs |
| Storage Type | HDD (Hard Disk Drive) |
| Optical Drive | DVD-Rom |
| Operating System Edition | Professional |
| SSD Capacity | NONE |
| Memory Type | DDR4 DIMM |
| Cores | 6 |
| Other Software | None |
| Brand | Dell |
| L2 Cache | 9 MB |
| Form Factor | Small Form Factor (SFF) |
| Part Number | 085B |
| Screen Size | None |
| Maximum Ram Capacity | 64 GB |
| Custom Bundle | No |
| Motherboard Model | None |
| Series | Dell Optiplex |
| Operating System | Windows 10 |
| RAM Type | DDR4 DIMM |
| Most Suitable For | Casual Computing,Office |
| Connectivity | USB 3.1,DisplayPort |
| Max Turbo Speed | 4.10 GHz |
| MPN | None |
| Processor Speed | 3.00GHz |
| Release Year | 2018 |
| Hard Drive Capacity | 500GB |
| GPU | Intel Uhd 630 Graphics |
| Item Length | 292.1mm |
| Audio Output | Integrated |
| Webcam | No |
| Bundle Description | None |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade is reserved for units that show evidence of very little to no previous use. Any wear on an "Excellent" Display, including housing/frame and/or external surfaces (i.e. Frame) is associated with standard minimal use. "Excellent" units may have minor scuffing and / or minor abrasions on plastics with from standard light previous use."Excellent" Displays will feature no scratches, cracks, chips, dead pixels, dark spots, discoloration or blemishes. Units will only feature the standard minimal wear and tear that is associated with a used unit.
"Good" Grade - Laptops
"Good" laptops may feature one or several small dings or dents on covers and / or small paint chips on the surface or small hairline cracks in the bezel. Laptop screens may feature uneven light diffusion in screen and may feature subtle blemishes. "Good" Laptops will not feature cracks screens but may feature slight scratching, dead pixels or white spots on the screen.
"Good" Grade - Desktops
"Good" grade desktops may have light scratches on external body and may feature more excessive unit housing and/or external case wear than "Excellent" units, including wear on case / lid. "Good" PCs may feature one or several small dings or dents on covers and / or small paint chips on the surface.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include scratches on body, small paint chips, minor cracks on body, loose and/or wobbly bases. "Good" Display screens may feature uneven light diffusion in screen and may feature subtle to moderate blemishes. "Good" Displays will not feature cracks on screens but may feature slight scratching on screen surfaces from moderate use or wear, dead pixels or white spots on the screen.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade
