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 reliable business computing with its Intel Core i5-10500 processor (6 cores, 3.1GHz), 8GB DDR4 RAM, and lightning-fast 128GB NVMe SSD storage. This compact small form factor design fits easily into space-constrained offices while providing the expandability and connectivity modern businesses demand. Professionally refurbished by Reboot IT with Windows 11 Pro pre-installed and backed by our comprehensive 12-month warranty for complete peace of mind.
What Makes the OptiPlex 5090 a Strong Business Desktop Choice?
- 10th Gen Intel i5-10500 processor: Six cores running at 3.1GHz base frequency deliver consistent performance for multitasking across Microsoft Office, web applications, and business software without slowdowns.
- 128GB NVMe SSD storage: Solid-state technology boots Windows 11 Pro in approximately 8 seconds and launches applications instantly, eliminating traditional hard drive bottlenecks that slow productivity.
- 8GB DDR4 system memory: Handles simultaneous operation of multiple browser tabs, email clients, video conferencing, and document editing while maintaining smooth system responsiveness throughout the workday.
- Small form factor design: Compact 29.2cm × 9.3cm × 29.2cm footprint saves valuable desk space while providing full desktop computing power and comprehensive I/O connectivity options.
- Enterprise-grade build quality: Originally deployed in corporate environments, the OptiPlex 5090 features robust construction designed for continuous operation and reliable performance under heavy business workloads.
- Windows 11 Pro operating system: Includes advanced security features like BitLocker encryption, Windows Defender, and enterprise management capabilities alongside familiar productivity tools and modern interface design.
How Does the OptiPlex 5090 Perform in Daily Business Use?
The Intel Core i5-10500 processor excels in typical office environments where users run multiple applications simultaneously. During testing, our technicians found the six-core architecture handles demanding scenarios like running MYOB accounting software alongside Excel spreadsheets with 100+ rows, multiple Chrome browser tabs, and Microsoft Teams video calls without performance degradation. The 10th generation architecture includes hardware-level security features and Intel UHD Graphics 630 for smooth Windows 11 interface rendering and dual-monitor productivity setups.
The 128GB NVMe SSD transforms system responsiveness compared to traditional hard drive systems. Boot times average 8-10 seconds from power button to desktop, while application launches are nearly instantaneous. Large file operations complete quickly – copying a 1GB presentation takes approximately 3 seconds versus 30+ seconds on mechanical drives. This storage speed advantage extends to everyday tasks like opening email attachments, launching web browsers, and switching between applications, creating a notably more responsive computing experience.
The small form factor design maximises workspace efficiency without sacrificing connectivity. Rear I/O includes multiple USB 3.2 ports, DisplayPort outputs for dual-monitor setups, Gigabit Ethernet for reliable network connections, and legacy VGA for older projectors. Front panel USB ports provide convenient access for flash drives and peripherals. The compact chassis fits under monitors, beside keyboards, or in tight spaces while maintaining proper ventilation for continuous operation in professional environments.
Complete Technical Specifications
| Processor | Intel Core i5-10500 (10th Gen, 3.1GHz base, 6 cores/12 threads) |
| Memory | 8GB DDR4 RAM (expandable to 64GB) |
| Storage | 128GB NVMe SSD (SSSTC CL1-3D128-Q11) |
| Graphics | Intel UHD Graphics 630 (integrated) |
| Form Factor | Small Form Factor (SFF) - 29.2cm × 9.3cm × 29.2cm |
| Front I/O | 2× USB 3.2 Gen 1, audio headphone/microphone combo jack |
| Rear I/O | 4× USB 3.2 Gen 1, 2× USB 2.0, 2× DisplayPort 1.4, VGA, RJ45 Gigabit Ethernet |
| Network | Integrated Gigabit Ethernet, Wi-Fi 6 (802.11ax) |
| Expansion | 1× PCIe x16 slot, 1× PCIe x4 slot, 2× DIMM slots |
| Power Supply | 180W 80+ Bronze certified |
| Security | TPM 2.0, Intel Boot Guard, UEFI Secure Boot |
| Operating System | Windows 11 Pro (64-bit) |
| Dimensions | 292mm (H) × 93mm (W) × 292mm (D) |
| Certifications | ENERGY STAR 8.0, EPEAT Gold, TCO Certified |
Is the OptiPlex 5090 Right for Your Needs?
| • Small office environments with limited desk space • Administrative tasks and document processing • Web browsing and email management • Basic accounting software (MYOB, Xero) • Video conferencing and remote work setups |
• Heavy video editing or 3D rendering workflows • Gaming beyond casual web-based titles • Large-scale data analysis requiring 32GB+ RAM • CAD/engineering applications with GPU demands • High-end multimedia production environments |
Understanding Condition Grades and Quality Standards
Every Dell OptiPlex 5090 undergoes comprehensive testing and refurbishment regardless of cosmetic grade. Our transparent grading system helps you choose the right balance between appearance and value for your specific needs.
| A – Excellent | Like-new appearance with minimal signs of previous use | No visible scratches, minimal handling marks, pristine housing |
| B – Good | Good condition with light cosmetic wear from office use | Minor surface marks, light scuffing, possible small dents |
All condition grades receive identical hardware testing, cleaning, and restoration processes through our Verified Reboot Refurb programme. Every unit includes the same 12-month warranty coverage and performance guarantees regardless of cosmetic appearance.
Frequently Asked Questions About the OptiPlex 5090
Q: What are the exact dimensions and will this fit in a compact office setup?
The OptiPlex 5090 SFF measures 292mm × 93mm × 292mm (H×W×D), making it one of the most space-efficient business desktops available. The ultra-slim 9.3cm width allows placement beside monitors, under desks, or in tight spaces while maintaining proper ventilation.
Q: How many monitors can this desktop support and what connection types are available?
The integrated Intel UHD Graphics 630 supports dual displays simultaneously via two DisplayPort 1.4 outputs plus legacy VGA. Maximum resolution per display is 4K (3840×2160) at 60Hz, ideal for productivity setups with modern monitors or existing office projectors.
Q: Can I upgrade the RAM and storage in this small form factor case?
Yes, the OptiPlex 5090 includes two DIMM slots supporting up to 64GB total DDR4 memory and space for additional 2.5-inch SATA drives. The PCIe expansion slots accommodate add-in cards like dedicated graphics or additional storage controllers if requirements grow.
Q: Is Windows 11 officially supported on the i5-10500 processor and what security features are included?
The 10th generation i5-10500 fully supports Windows 11 with TPM 2.0 security chip, UEFI Secure Boot, and Intel Boot Guard. These hardware security features enable BitLocker encryption, Windows Hello authentication, and enterprise-grade data protection capabilities.
Q: What does the refurbishment process include and how do condition grades differ?
Every OptiPlex 5090 undergoes our Verified Reboot Refurb process including hardware diagnostics, component testing, cleaning, and Windows 11 installation. Condition grades reflect cosmetic appearance only – all grades receive identical performance testing and 12-month warranty coverage. See our Cosmetic Grading Guide for detailed grade explanations.
12-Month Warranty Coverage
Every refurbished OptiPlex 5090 includes comprehensive 12-month warranty protection covering all hardware components, pre-installed software, and system functionality. Our warranty ensures you receive the same confidence as purchasing new equipment.
Coverage includes processor, memory, storage, graphics, motherboard, power supply, and all integrated components. Technical support and replacement services available throughout Australia via our Melbourne-based service centre.
Reboot IT has served Australian businesses since 2001 with over 100,000 satisfied customers. Our certified technicians and quality standards ensure your refurbished desktop delivers reliable, long-term performance backed by genuine warranty protection.
Upgradeability and Compatibility Options
The OptiPlex 5090's design prioritises future expansion within its compact footprint. Memory upgrades are straightforward with two accessible DIMM slots supporting DDR4-2933 modules up to 32GB each, allowing total system memory of 64GB for demanding applications. The standard 8GB configuration handles typical business workloads, while users requiring intensive multitasking can easily double or quadruple capacity.
Storage expansion options include adding 2.5-inch SATA drives for additional capacity alongside the primary NVMe SSD. The two PCIe expansion slots accommodate dedicated graphics cards, additional USB controllers, or specialised interface cards. Standard peripherals connect via six USB ports (four USB 3.2, two USB 2.0) while the Gigabit Ethernet and Wi-Fi 6 provide flexible network connectivity options.
All standard business peripherals including keyboards, mice, printers, and monitors connect seamlessly through comprehensive I/O ports. The dual DisplayPort outputs support modern 4K displays while legacy VGA ensures compatibility with existing projectors and older monitors, making the OptiPlex 5090 adaptable to any office environment.
| 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
