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Dell OptiPlex 7400AIO 24" i5-12500 16GB 256GB NVMe SSD Win 11 Pro Wty

Excellent Grade · Fully tested · No visible marks
SKU: R-5974-EXC
4.76
★★★★★
708 reviews
12mo
Warranty
30day
Free returns
40+
Tech-tested checks
✓ Fast AU shipping ✓ Pickup: Springvale VIC
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$609.00 $725.00

You save $116

or 4 interest-free payments of $152.25 with

Select a keyboard and mouse combo upgrade and enjoy a 50% discount on it at checkout!

Customize and Upgrade Your Device

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 Core i5
Memory
16GB
Storage
256GB NVMe SSD
Display
21in - 24in · Full HD (1920x1080)
Operating System
Windows 11
Graphics
Intel UHD Graphics

Safe & Secure

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

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

Description

Dell OptiPlex 7400 AIO 24" — 12th Gen All-in-One Workstation

The Dell OptiPlex 7400 AIO combines a 12th Gen Intel Core i5-12500 processor with 16GB DDR5 RAM and a 256GB NVMe SSD into a sleek 23.8-inch Full HD all-in-one — backed by a 12-month Reboot IT warranty.

Key Benefits

  • 12th Gen Intel Core i5-12500: 6 cores, 12 threads — responsive multitasking for office, finance, and creative workloads
  • 16GB DDR5 RAM: Modern high-bandwidth memory architecture for fast application switching and data throughput
  • 256GB NVMe SSD: Fast boot times and snappy file access — no spinning drives, no lag
  • 23.8-inch Full HD Display: Crisp 1920×1080 IPS-grade panel with integrated webcam — ideal for video conferencing
  • Windows 11 Pro included: Ready for enterprise deployment with BitLocker, Remote Desktop, and Group Policy support
  • Space-saving all-in-one design: Monitor and PC in one unit — minimal cabling, clean desk setup

Performance in Use

In a typical office environment, the OptiPlex 7400 AIO handles everything from spreadsheets and email to video calls and browser-heavy workflows without breaking a sweat. The i5-12500's 6-core architecture means even CPU-intensive tasks like bulk PDF processing or data imports run efficiently, while DDR5 memory provides the bandwidth headroom that older systems simply can't match.

For finance teams, HR departments, or reception desks, the integrated 23.8-inch Full HD display and built-in webcam eliminate desk clutter — there's no separate tower to fit under a desk or behind a monitor. The compact form factor is particularly well-suited to hot-desking environments where space is at a premium.

IT administrators will appreciate Windows 11 Pro's enterprise feature set straight out of the box. BitLocker encryption, Remote Desktop access, and Active Directory compatibility make it straightforward to deploy and manage in a business network without additional licensing overhead.

Tech Specs

Brand / Model Dell OptiPlex 7400 AIO
Processor Intel Core i5-12500, 12th Gen, 6 cores / 12 threads
RAM 16GB DDR5
Storage 256GB NVMe SSD
Display 23.8-inch Full HD (1920×1080)
Webcam Integrated
Operating System Windows 11 Pro
Form Factor All-in-One Desktop
Warranty 12 months — Reboot IT

Is It Right for You?

Best For ✓
  • Office, reception, and admin workstations
  • Finance, HR, and data entry roles
  • Hot-desking or space-constrained desks
  • Video conferencing (integrated webcam)
  • Business network deployment (Windows 11 Pro)
 Not For ✗
  • Dedicated gaming (integrated graphics only)
  • Heavy video editing or 3D rendering
  • Users needing a separate monitor of choice
  • Upgrade-intensive builds (AIO form factor limits access)

Condition Grades

Grade Condition Cosmetics
A — Excellent Fully tested, all features working Minimal marks — near-new appearance
B — Good Fully tested, all features working Light scuffs or scratches — solid functional unit

Battery note: N/A (desktop unit). All units include a 12-month warranty.

Frequently Asked Questions

Does this include a keyboard and mouse?

Not typically included — we recommend purchasing a USB or wireless keyboard/mouse separately. The unit itself is complete and fully operational.

Is Windows 11 Pro activated?

Yes. Windows 11 Pro is installed and activated — ready to join a domain or use as a standalone workstation straight out of the box.

Can the RAM or storage be upgraded?

The OptiPlex 7400 AIO has limited upgrade accessibility compared to a tower desktop. Check Dell's service manual for your specific configuration before attempting internal upgrades.

Does it have Wi-Fi?

This unit connects via Ethernet. Wi-Fi availability depends on the specific configuration — check the product listing or contact us to confirm before purchase.

What ports are available?

The OptiPlex 7400 AIO features USB-A, USB-C, DisplayPort, HDMI, and an RJ-45 Ethernet port. Exact port configuration may vary — contact us to confirm.

What is the warranty?

Every unit sold by Reboot IT includes a 12-month warranty covering hardware defects and failures. Our Melbourne-based team handles all warranty claims directly — no third-party runaround.

What are shipping costs?

Shipping costs apply based on size and destination — rates are calculated at checkout.

12-Month Warranty — Reboot IT

Every Dell OptiPlex 7400 AIO sold by Reboot IT is professionally tested, cleaned, and graded by our Melbourne team before dispatch. This unit comes with a full 12-month warranty covering hardware defects and failures.

Reboot IT has been sourcing and refurbishing enterprise IT equipment since 2001. Our quality process means you get a business-grade machine at a fraction of new cost — backed by real local support. Visit us at reboot-it.com.au or contact our Melbourne team directly for any pre-sale or post-sale questions.

Specifications
  • Model
    OptiPlex 7400
  • Processor
    Intel Core i5
  • RAM
    16GB
  • Storage
    256GB
  • Storage Type
    NVMe SSD
  • Screen Size
    21in - 24in
  • Resolution
    Full HD (1920x1080)
  • Aspect Ratio
    16:9
  • Graphics
    Intel UHD Graphics
  • Operating System
    Windows 11
  • Connectivity
    USB-A, USB-C / Thunderbolt, HDMI, Ethernet Port
  • Video Inputs
    HDMI
  • Colour
    Black
  • Warranty
    1-year

What's in the box
  • Dell - OptiPlex 7400
  • Tax invoice
  • Power cable
By buying refurbished, you avoid
300kg

of CO₂ vs. manufacturing new

And divert
1.8kg

of e-waste from landfill

Source: Circular Computing LCA + OEM PCF datasheets — per unit.

Why the OptiPlex 7400?

12th Gen 6-core all-in-one with 16GB DDR5 and NVMe SSD — monitor and PC in one clean unit with integrated webcam, Windows 11 Pro, and a 23.8-inch Full HD display. Backed by a 12-month Reboot IT warranty.

A Dell Optiplex 7400 AIO (i5-12500, 8GB, 256GB SSD, 23.8) sits on a modern white desk with a widescreen display showing abstract art, keyboard, mouse, potted plant, and notebook.

Intel Core i5-12500 — 12th Gen, 6 cores, 12 threads

6 performance cores at up to 4.60GHz Turbo handle office workloads, bulk data processing, and multi-app environments faster than any 4-core 10th Gen or earlier equivalent.

256GB NVMe SSD — instant boot, rapid file access

NVMe solid-state storage boots Windows 11 Pro in seconds and opens large applications near-instantly — no spinning drives, no lag, no waiting for the machine to wake up.

16GB DDR5 — next-gen high-bandwidth memory

DDR5 memory offers higher bandwidth than DDR4 at the same capacity — smoother application switching, faster data throughput, and more headroom for multi-threaded workloads.

23.8" Full HD AIO — integrated webcam, zero cable clutter

Monitor and PC in one unit with built-in Full HD webcam — no tower under the desk, no separate display cables, and no USB webcam needed for Teams or Zoom calls.

Intel Core i5-12500 — 12th Gen, 6 cores, 12 threads

6 performance cores at up to 4.60GHz Turbo handle office workloads, bulk data processing, and multi-app environments faster than any 4-core 10th Gen or earlier equivalent.

256GB NVMe SSD — instant boot, rapid file access

NVMe solid-state storage boots Windows 11 Pro in seconds and opens large applications near-instantly — no spinning drives, no lag, no waiting for the machine to wake up.

A Dell Optiplex 7400 AIO (i5-12500, 8GB, 256GB SSD, 23.8) sits on a modern white desk with a widescreen display showing abstract art, keyboard, mouse, potted plant, and notebook.

16GB DDR5 — next-gen high-bandwidth memory

DDR5 memory offers higher bandwidth than DDR4 at the same capacity — smoother application switching, faster data throughput, and more headroom for multi-threaded workloads.

23.8" Full HD AIO — integrated webcam, zero cable clutter

Monitor and PC in one unit with built-in Full HD webcam — no tower under the desk, no separate display cables, and no USB webcam needed for Teams or Zoom calls.

Let customers speak for us

from 708 reviews
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Condition as stated in description if not better.

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Great little laptop for school

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Good value and great quality

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T.B.

Fantastic service

HP ProDesk 400 G3 SFF i3 6320 3.9GHz 8GB 500GB NO OS Computer | 1yr Wty
James Lees
All-in-one Solution for Home Office

I was looking for an in-expensive all-in-one solution for my home office to replace my existing desktop and monitor. I found this EliteOne 800 on reboot IT for under $200. I wasn't sure what to expect. It arrived within two days!!!! I upgraded the RAM, replaced the HDD and installed Windows 11. This is unbeatable value and was the cheapest price online. Coupled with a 3-month warranty, Reboot IT are by far the best online refurbished retailer I have used. Awesome!

Reboot IT
Apple iPad 6th Gen 9.7" 32GB Space Grey Wi-Fi + Cellular A10 Unlocked | Wty
Farley

Great service. Product in great condition and exactly what i want. I wanted this for a specific purpose but i dont need to spend $900 on a new one.

Apple iPad 6th Gen 9.7" 32GB Space Grey Wi-Fi + Cellular A10 Unlocked | Wty
Melinda Panuan
Excellent

Excellent work

Reboot IT
steve maloney
exactly as described and works well

exactly as described and works well , just like the staff down there. 10/10

Reboot IT
Lenovo ThinkPad X1 Carbon G5 i7 6600U 2.6GHz 8GB 256GB 14" W10P | Wty
Anonymous
Very happy

Very happy, thank you

Lenovo ThinkPad X1 Carbon G5 i7 6600U 2.6GHz 8GB 256GB 14" W10P | Wty
Barbara Jenkins Jenkins
Just having trouble greeting it linked to the internet otherwise it’s okay

Just having trouble greeting it linked to the internet otherwise it’s okay.

Reboot IT
Dell XPS 13 7390 2-in-1 i7 1065G7 1.3GHz 16GB 512GB SSD 13.4" Touch W11P | Wty
Anonymous
Fair tech for price

Fair tech for price, good specs for era, serves the purpose. The black keyboard is an interesting rubber like texture clearly by design to pad the screen and avoid the keyboard touching. Screen is great. Still looking for magic formula to enable computer use in the bright bright sunshine. Keyboard taps are loud for someone who likes silent touch. The perfect PC has to exist, like build a bear.

Dell XPS 13 7390 2-in-1 i7 1065G7 1.3GHz 16GB 512GB SSD 13.4" Touch W11P | Wty
IAN BOLSTER
Works excellently as advertised.

The laptop was sold with a warning about worn keycaps. In fact they had been obviously vandalised (ex school laptops, perhaps?). The keyboard worked fine, and the rest of the laptop too. I'm using it as a file server, so I don't need the keyboard much. So very pleased, and also pleased with reboot-it's service - as always, excellent, and quick responses to any queries.

Reboot IT

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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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