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Dell OptiPlex 3040USDT G4400T 2.9GHz 4GB 500GB HDD W10P · 1yr Wty

Excellent Grade · Fully tested · No visible marks
SKU: R-5639-EXC
4.76
★★★★★
708 reviews
12mo
Warranty
30day
Free returns
40+
Tech-tested checks
✓ Free AU shipping ✓ Pickup: Springvale VIC
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Sale price $99.00 Regular price $129.00

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Perks you get with every purchase

Warranty
If your item experiences a technical issue, we've got you covered—we'll either repair it or replace it for you!

30 days to change your mind
Feel free to return your item for any reason within the first 30 days of receiving it. It's that easy!

Free express shipping
Enjoy fast, free express shipping on all small items like laptops, tablets, and smartphones!

Customer support
Rest assured, we’ll always respond to you within 1 business day!

Frequently asked questions

What does the warranty cover?

Our warranty covers all hardware faults, but please note it doesn’t cover accidental damage or software issues. However, we’re here to help with technical support for those matters!

What is a refurbished device?

A refurbished device is a pre-owned item that has been restored to meet high-quality standards. At Reboot IT, we adhere to strict quality guidelines, ensuring that our refurbished products are not the same as used or secondhand items. We meticulously clean, test, and assess each device, replacing worn parts with high-quality components.

Unlike used items, which lack guarantees and rely solely on the seller's word regarding condition, refurbished devices come with assurance of quality and reliability.

What payment options are available?

We offer a variety of payment options to make your shopping experience as convenient as possible! You can pay using all major credit cards, Apple Pay, Google Pay, Shop Pay, Afterpay, Zip Pay, and PayPal. If you prefer, we also accept bank deposits and even cash for in-store purchases!

At a Glance

Processor
Intel Celeron G4400T
Memory
4GB
Storage
500GB SSD
Display
7in - 10in · Full HD (1920x1080)
Operating System
Windows 11 Pro
Graphics
INTEL HD 530 GRAPHICS

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We ensure secure processing of your payment information and do not retain or have access to your credit card details.

Description

Dell OptiPlex 3040 USDT Ultra-Compact Business Desktop - Reliable Performance in Minimal Space

The Dell OptiPlex 3040 USDT combines enterprise-grade reliability with an ultra-small form factor, featuring an Intel Celeron G4400T processor, 4GB DDR4 memory, and 500GB storage capacity. This refurbished business desktop delivers dependable performance for essential office tasks, web browsing, and document processing while occupying minimal desk space. Professionally refurbished by Reboot IT with rigorous quality testing and backed by a comprehensive 12-month warranty for complete peace of mind.

What Makes the Dell OptiPlex 3040 a Strong Compact Desktop Choice?

The Dell OptiPlex 3040 USDT stands out as an exceptional compact desktop solution, originally designed for enterprise environments where space efficiency and reliability are paramount. This ultra-small desktop delivers several compelling advantages:

  • Space-Saving Excellence — At just 7.2 inches wide, the USDT form factor fits virtually anywhere, from cramped cubicles to reception desks, while delivering full desktop functionality without the bulk of traditional towers.
  • Enterprise Heritage — Built to Dell's commercial-grade standards with enhanced cooling, business-class components, and rigorous durability testing that ensures consistent performance through years of daily use.
  • Energy Efficient Operation — The 35W TDP Celeron G4400T processor provides adequate computing power while maintaining low power consumption, reducing electricity costs and heat generation.
  • Versatile Connectivity — Multiple USB ports, dual display outputs (VGA and DisplayPort), and integrated Ethernet ensure compatibility with existing peripherals and network infrastructure.
  • Windows 10 Pro Ready — Pre-installed with Windows 10 Pro, offering advanced security features, domain joining capabilities, and professional productivity tools right out of the box.
  • Sustainable Technology Choice — Professionally refurbished equipment extends device lifecycles, reducing electronic waste while delivering reliable performance at a fraction of new equipment costs.

How Does the Dell OptiPlex 3040 Perform in Daily Business Use?

The Dell OptiPlex 3040 USDT excels in essential business computing scenarios where reliable performance and space efficiency take priority over high-end processing power. The Intel Celeron G4400T's dual-core architecture handles typical office workloads smoothly, including Microsoft Office applications, web-based software platforms, email management, and basic accounting programs. Users can expect responsive performance when running 3-5 applications simultaneously, making it ideal for reception desks, point-of-sale systems, and general administrative workstations.

The integrated Intel HD Graphics 510 supports dual-monitor setups effectively, enabling productivity-focused workflows with extended desktop configurations. Whether displaying spreadsheets across multiple screens or running digital signage applications, the graphics capability handles business graphics requirements without performance bottlenecks. The 500GB hard drive provides ample storage for business documents, software installations, and local data backup needs.

In real-world testing environments, this configuration demonstrates particular strength in customer service environments, healthcare administration systems, educational computer labs, and small business workstations where consistent uptime and compact footprint matter more than intensive processing capabilities. The low-noise operation makes it suitable for quiet office environments, while the enterprise-grade cooling system ensures stable performance during extended operation periods.

Complete Technical Specifications

Component Specification
Processor Intel Celeron G4400T Dual-Core 2.9GHz (6th Generation Skylake, 14nm, 35W TDP)
Memory 4GB DDR4-2133 SODIMM (1 x 4GB), Dual-Channel Support
Storage 500GB SATA 7200 RPM Hard Drive (3.5" Internal)
Graphics Intel HD Graphics 510 (Integrated, DirectX 12, 4K Support)
Form Factor Ultra Small Desktop (USDT) - 182.55 x 292.8 x 65mm (W x D x H)
Weight Approximately 2.3kg (5.07 lbs)
USB Ports 6 Total - 4 x USB 3.0 (2 front, 2 rear), 2 x USB 2.0 (rear)
Video Output 1 x VGA, 1 x DisplayPort 1.2 (Supports dual monitors up to 1920x1080)
Network Intel Gigabit Ethernet (10/100/1000)
Audio Realtek ALC3234 HD Audio, 3.5mm Line Out/Microphone Jack
Expansion 1 x PCIe x16 Low Profile Slot, 1 x M.2 2230 Slot (WiFi)
Security Kensington Lock Slot, TPM 2.0 Support, Chassis Intrusion Detection
Power Supply External 90W AC Adapter (100-240V, 50/60Hz)
Operating System Windows 10 Pro 64-bit (Genuine Microsoft License)
Wireless Optional WiFi Module Support (M.2 2230 Slot Available)
Memory Support Maximum 16GB DDR4 (2 x SODIMM Slots, DDR4-2133)
BIOS Dell Business BIOS with Advanced Management Features
Temperature Range Operating: 10°C to 35°C, Storage: -40°C to 65°C
Certifications ENERGY STAR, EPEAT Gold, TCO Certified
Warranty Support Dell Service Tag for Driver Downloads and Technical Documentation

Is the Dell OptiPlex 3040 Right for Your Needs?

✓ Best For:
• Essential office tasks and document processing
• Reception desks and customer service stations
• Point-of-sale systems and retail environments
• Educational computer labs with space constraints
• Small business workstations with basic computing needs
• Digital signage and kiosk applications
✗ Not Recommended For:
• Video editing or graphic design work
• Gaming or multimedia entertainment
• CAD/engineering software applications
• Virtual machine hosting or server roles
• Heavy multitasking with resource-intensive programs
• Professional photo editing or 3D rendering

Understanding Condition Grades and Battery Health

Reboot IT uses a transparent three-tier grading system to ensure you know exactly what to expect from your refurbished Dell OptiPlex 3040. Each grade reflects the cosmetic condition while maintaining full functionality and performance standards. All grades undergo identical rigorous testing and refurbishment processes, differing only in external appearance based on previous corporate use.

Grade Cosmetic Condition Typical Characteristics
A — Excellent Minimal wear, like-new appearance No visible scratches, dents, or discoloration. Professional presentation suitable for client-facing environments.
B — Good Light usage marks, fully functional Minor keyboard wear, slight surface marks, or small cosmetic imperfections that don't affect operation.
C — Fair Visible wear, excellent value Noticeable scratches up to 5cm, surface wear, or cosmetic aging while maintaining complete functionality.

As a desktop system, the OptiPlex 3040 doesn't include battery considerations. However, all units receive comprehensive power supply testing to ensure reliable AC adapter performance and stable power delivery to internal components.

Frequently Asked Questions About the Dell OptiPlex 3040

What warranty is included with this refurbished Dell OptiPlex 3040?

Every Dell OptiPlex 3040 includes a comprehensive 12-month warranty provided by Reboot IT, covering all hardware components, functionality, and performance issues. This matches new equipment warranty protection with full repair or replacement coverage.

Can this desktop handle dual monitor setups for increased productivity?

Yes, the OptiPlex 3040 supports dual monitors through its VGA and DisplayPort 1.2 outputs, enabling extended desktop configurations up to 1920x1080 resolution per display for enhanced workflow efficiency.

How much additional memory can I install in this system?

The Dell OptiPlex 3040 supports up to 16GB total memory using two DDR4 SODIMM slots. You can upgrade from the included 4GB to 8GB or 16GB configurations with standard DDR4-2133 memory modules.

Is the hard drive replaceable with a faster SSD for improved performance?

Absolutely. The 500GB hard drive can be replaced with a 2.5" SATA SSD for significantly faster boot times, application loading, and overall system responsiveness while maintaining the same storage interface compatibility.

Does this model support modern wireless connectivity options?

The OptiPlex 3040 includes an M.2 2230 slot for optional WiFi module installation. While not included by default, you can add compatible wireless cards for WiFi and Bluetooth connectivity.

What makes this refurbished desktop different from simply buying used equipment?

Reboot IT's Verified Refurb process includes comprehensive hardware testing, professional cleaning, component replacement when necessary, fresh Windows 10 Pro installation, and quality certification that used equipment typically lacks.

Can I use this desktop for basic business accounting and inventory management software?

Yes, the Celeron G4400T processor and 4GB memory handle standard business software including QuickBooks, point-of-sale systems, inventory management applications, and web-based business platforms effectively within normal operational parameters.

Warranty and After-Sales Support

Your Dell OptiPlex 3040 USDT comes protected by a comprehensive 12-month warranty provided by Reboot IT, ensuring complete coverage for hardware functionality, component performance, and system reliability. This warranty matches the protection level of new equipment purchases, giving you confidence in your refurbished investment.

The warranty covers all internal components, power supplies, ports, and system functionality with repair or replacement services as needed. Claims are processed quickly through Reboot IT's established support channels, with experienced technicians who understand business-grade Dell systems thoroughly.

As Australia's trusted refurbished computer specialist since 2001, Reboot IT stands behind every device with professional technical support, genuine replacement parts access, and the expertise that comes from processing thousands of enterprise-grade systems annually.

Upgradeability and Compatibility Options

The Dell OptiPlex 3040 USDT offers several practical upgrade paths to extend its useful life and adapt to changing requirements. Memory expansion is straightforward, with support for up to 16GB DDR4 through two accessible SODIMM slots beneath the system's tool-free access panel. Storage upgrades provide the most significant performance improvement opportunity — replacing the 500GB hard drive with a 2.5" SATA SSD dramatically improves boot times and application responsiveness.

The system includes one PCIe x16 low-profile expansion slot for adding specialized cards like additional network interfaces, serial ports, or professional graphics cards within low-profile specifications. The M.2 2230 slot enables WiFi module installation for wireless connectivity when needed.

Windows 11 compatibility requires verification of TPM 2.0 enablement in BIOS settings, though the 6th generation Celeron processor meets Microsoft's minimum requirements for the operating system upgrade path. All standard USB peripherals, monitors, and business equipment maintain full compatibility with this established Dell platform.

Specifications

  • Brand
    Dell
  • Model
    OptiPlex 3040
  • Processor
    Intel Celeron G4400T
  • RAM
    4GB
  • Storage
    500GB
  • Storage Type
    SSD
  • Screen Size
    7in - 10in
  • Resolution
    Full HD (1920x1080)
  • Graphics
    INTEL HD 530 GRAPHICS
  • Operating System
    Windows 11 Pro
  • Connectivity
    HDMI, USB 2.0, USB 3.0, DisplayPort
  • Video Inputs
    DisplayPort, VGA
  • Colour
    Black
  • Warranty
    1 Year

What's in the box

  • Dell OptiPlex 3040
  • Power cable
  • Tax invoice is included with all sales
By buying refurbished, you avoid
375kg

of CO₂ vs. manufacturing new

And divert
7.5kg

of e-waste from landfill

Source: HP EliteDesk PCF datasheet — per unit.

Why the OptiPlex 3040?

This Dell OptiPlex 3040 USDT combines Intel Celeron G4400T processing with compact ultra-small desktop design, delivering reliable Windows 11 Pro performance for office work in minimal space.

Dell OptiPlex 3040 USDT i5 6500T 2.5GHz 8GB 256GB SSD W10P Computer | 3mth Wty

Ultra-Small Desktop Design

The USDT form factor takes up minimal desk space while providing full desktop functionality with multiple connectivity options.

Windows 11 Pro

Pre-installed Windows 11 Pro provides enhanced security features and professional-grade tools for business environments.

Intel Celeron Processing

The G4400T processor running at 2.9GHz delivers dependable performance for everyday office tasks and productivity applications.

Full Year Warranty

Backed by a comprehensive 1-year warranty for complete peace of mind with your refurbished desktop investment.

Ultra-Small Desktop Design

The USDT form factor takes up minimal desk space while providing full desktop functionality with multiple connectivity options.

Windows 11 Pro

Pre-installed Windows 11 Pro provides enhanced security features and professional-grade tools for business environments.

Dell OptiPlex 3040 USDT i5 6500T 2.5GHz 8GB 256GB SSD W10P Computer | 3mth Wty

Intel Celeron Processing

The G4400T processor running at 2.9GHz delivers dependable performance for everyday office tasks and productivity applications.

Full Year Warranty

Backed by a comprehensive 1-year warranty for complete peace of mind with your refurbished desktop investment.

Still undecided? Ask our experts.

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How Reboot IT Revitalises and Certifies Refurbished Equipment

Learn more
  • Device Arrival

    We carefully source certified refurbished computers from trusted corporate, government, and education sectors, giving each device a fresh start and new purpose.

  • Secure Data Wipe

    To protect your privacy, all previous data is securely and thoroughly erased from every tested refurbished device before it reaches you.

  • Comprehensive Testing

    Each certified refurbished computer undergoes detailed testing with specialized software to ensure full functionality, and any worn or faulty components are replaced exclusively with original parts, guaranteeing reliable, long-lasting performance for your tested refurbished device.

  • Cleaning & Grading

    Every computer is professionally cleaned and carefully graded, so you know exactly what condition your certified refurbished computer is in—giving you full confidence in your purchase.

WELCOME TO REBOOT IT

Australia's number one source for Refurbished Desktops, Laptops, Monitors and more.

Since 2001, Reboot IT has been Australia’s trusted source for certified refurbished computers and IT hardware. Every device is rigorously tested and professionally refurbished to deliver reliable, like-new performance — all at a fraction of the cost of new equipment. With over 100,000 satisfied customers, we combine expert quality with unbeatable value. Shop with confidence knowing your refurbished device comes backed by warranty and supports sustainable tech reuse.

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  • We are an IBM authorized reseller for refurbished computer and IT hardware, tested by professional and guaranteed to perform like new.