Please allow ~4-6 weeks to dispatch from Australia for quality control. Only 4 devices per customer may be shipped each day, so orders placed for more than 4 devices will be shipped over multiple days.
Products containing Lithium-Ion batteries (laptops and smartphones) are subject to extra safety requirements and are experiencing further delays.
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.
Product images are for illustrative purposes only and may contain AI-generated content. They do not represent the exact product that is subject to the cosmetic grading policy detailed here.






Dell OptiPlex 7450 All-In-One Desktop — Certified Refurbished with 3-Month Warranty
The Dell OptiPlex 7450 All-In-One features an Intel Core i5-6600 6th Gen processor (3.30 GHz base, 3.90 GHz max turbo), 4 GB DDR4 2400 MHz RAM, 256 GB SSD storage, a 23.8‑inch Full HD (1920×1080) IPS anti‑glare display, Intel HD 530 integrated graphics, DVD/RW optical drive, and runs Windows 10 Pro. This certified refurbished business‑class desktop combines professional performance with space‑saving design, ideal for everyday office tasks, web browsing, document creation, and multimedia consumption.
Professional Performance for Business Use
The 6th generation Intel Core i5‑6600 processor delivers reliable quad‑core performance with 4 cores and 4 threads, backed by 6 MB Intel Smart Cache. With Windows 10 Pro, you gain business‑oriented features including BitLocker encryption, domain‑join capabilities, and Group Policy management tools not available in the Home edition. Windows 10 Pro offers enhanced security through Windows Defender and Windows Hello biometric authentication, though it requires more frequent updates which can occasionally interrupt workflow. The operating system provides excellent application compatibility and stability, making it suitable for professional environments, though some users may experience slowdowns on systems with limited RAM like this 4 GB configuration.
Essential Technical Specifications
- Processor: Intel Core i5‑6600 (6th Gen Skylake), 3.30 GHz base / 3.90 GHz turbo, 4 cores
- Memory: 4 GB DDR4 2400 MHz SODIMM (expandable to 32 GB)
- Storage: 256 GB SSD (Solid State Drive) with DVD/RW optical drive
- Display: 23.8‑inch Full HD IPS panel, 1920×1080 resolution, anti‑glare coating
- Graphics: Intel HD Graphics 530 (integrated)
- Operating System: Windows 10 Pro (64‑bit)
- Connectivity: Intel I219‑LM Gigabit Ethernet, 6× USB 3.1 Gen 1, 2× USB 2.0
- Dimensions: 57.5 cm (W) × 39.3 cm (H) × 6.4 cm (D)
- Weight: 7.1 kg (system) + 2.8 kg (height‑adjustable stand)
- Colour: Black
Quality Assurance and Verified Refurbishment
This Dell OptiPlex 7450 has been meticulously restored by Reboot IT, an industry expert since 2001 using cutting‑edge diagnostic and testing software. Every certified refurbished unit undergoes Reboot IT's thorough verification process where we tested all features and functions to ensure reliable, long‑lasting performance. Each component is examined with specialised testing software, and any worn or faulty parts are replaced exclusively with original components.
Understanding Cosmetic Grades
Excellent Grade: Units show very light previous use with minimal wear on housing and external surfaces; may have very minor scuffing or minor abrasions; screens feature no scratches, cracks, chips, dead pixels, or discolouration.
Good Grade: Fully tested and functional units with light scratches on the external body and more visible case wear than Excellent units; may feature small dings, dents, or small paint chips; screens may show uneven light diffusion or subtle blemishes but no cracked screens.
Warranty Coverage
Sold by Reboot IT with a 3‑month warranty covering all hardware faults including screens, motherboards, and hard drives. The warranty begins on your purchase date and covers defects in materials and workmanship, providing repair or replacement of defective parts at no extra cost. Extended warranty options are available for additional protection on your investment.
Complete Your Workspace
This all‑in‑one design eliminates cable clutter while the height‑adjustable stand provides ergonomic positioning with tilt and swivel capabilities. With 8 USB ports, HDMI in/out, DisplayPort, SD card reader, and built‑in 8 W stereo speakers, you have comprehensive connectivity for peripherals and external displays. The energy‑efficient design meets ENERGY STAR 6.1 qualifications, reducing power consumption and operating costs.
Upgrade your workspace today with this professionally refurbished Dell OptiPlex 7450 — reliable business performance backed by Reboot IT's quality guarantee.
Built-in Camera |
| Built-in Wi-Fi Adapter |
| Optical Drive |
| Manufacturer Warranty | 1 Year |
| Features | Integrated Camera|Integrated Microphone|Integrated Wi-Fi Adapter |
| Item Height | 564mm |
| RAM Size | 8GB |
| Graphics Processing Type | Integrated/On-Board Graphics |
| Chipset | None |
| Item Width | 546mm |
| Model | OptiPlex 7450 AIO |
| Type | All-in-One |
| Resolution | 1920 x 1080 |
| Processor | Intel Core i5-6600 3.30 GHz |
| Release Date | Q4'16 |
| Processor Model | 6600 |
| Colour | None |
| Item Weight | 8.7kg |
| Storage Type | SSD (Solid State Drive) |
| Optical Drive | None |
| Operating System Edition | Professional |
| SSD Capacity | 256GB |
| Memory Type | DDR4 SODIMM |
| Cores | 4 |
| Other Software | Windows 10 Pro |
| Brand | Dell |
| L2 Cache | None |
| Form Factor | All-in-One |
| Part Number | 079C |
| Screen Size | 23.0 inches |
| Maximum Ram Capacity | None |
| Custom Bundle | No |
| Motherboard Model | None |
| Series | Dell OptiPlex |
| Operating System | Windows 10 Pro |
| RAM Type | DDR4 SODIMM |
| Most Suitable For | Office |
| Connectivity | USB 3.0|HDMI|RJ-45|Audio Jack |
| Max Turbo Speed | None |
| MPN | None |
| Processor Speed | 3.30GHz |
| Release Year | 2016 |
| Hard Drive Capacity | 256GB |
| GPU | Intel HD Graphics 530 |
| Item Length | 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






