iMac 27-inch 5K Two Thunderbolt 3 Ports, Intel i7 4.2 GHz 4-core 16GB 256GB, Silver
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iMac 27-inch 5K Two Thunderbolt 3 Ports, Intel i7 4.2 GHz 4-core 16GB 256GB, Silver
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About This Mac
Full Device Specification
Full technical specifications for 2017 Apple iMac 5K 27-inch Intel i7 4.2 GHz 4-core 16GB 256GB 580 8GB
Product Description
Retina Display
This system features a Retina 5K display with IPS technology which improves the overall experience of the screen, especially while binge-watching Netflix; however, you’ll see the most significant difference in text. Whether it’s reading emails or texting the words will be crisp on the screen with less fuzziness around the edges.
Your screen is made up of tiny pixels which display different colours that make up the image you see. Pixels are tiny, however, the smaller you make them, the more you can fit in the same area. A standard pixel is typically around 0.26mm wide whereas Retina is closer to 0.16mm. This smaller size creates a sharper, clearer image.
Suitability
This iMac Slim 27 Inch is configured with an impressive specification, this Mac will feel snappy and won't keep you waiting. You'll find that any work on documents, web browsing, emails, media streaming films or videos, online banking or more will seem effortless.
We consider this system to be one of our higher performance systems and ideal for any user at home or work. You will be able to run more intense workloads such as those found in a business with multiple browser windows open running multiple applications and working with all of those processes simultaneously.
If you're professional looking for more from your mac such as music production, video production, photo editing and design. Featuring a 4.2 GHz i7 - Quad Core coupled with a Radeon Pro 580 8GB and 16GB - 4 x 4GB memory you won't find a lack of performance in applications such as Adobe Premiere, Final Cut Pro, Adobe Photoshop, Capture One and more. Thanks to its high specification, the system will stay current for longer performing for years to come.
Connectivity
WiFi | 802.11ac |
Bluetooth | Bluetooth 4.2 |
USB | 4 - up to 5 Gbps |
Mini Display Port | Thunderbolt digital video output |
Thunderbolt | 2 - Thunderbolt 3 (up to 40 Gbps) |
Ethernet | 10/100/1000BASE-T (RJ-45) |
SD Card | 1 - Secure Digital (SDXC) |
Audio | Microphone 1 - 3.5-mm output jack, Built-in speakers |
MacOS
This systems includes a fresh installation of macOS Monterey 12 and supports the latest version of Apple’s operating system macOS. You’ll be able to run all of the latest Apple applications and have full support for any updates. Apple are always bring new updates to macOS, which are inspired by its professional users but built for everyone and has some of the best privacy and security as standard.
macOS includes a range of applications for creativity, productivity, communication, organisation and more. Whether it’s doing your finances, messaging your relatives or editing a movie you’re covered.
Oh and let’s not forget about iCloud. iCloud can automatically backup your files share with your other devices and create a seamless experience between your Mac and your phone or tablet.
What’s New In Monterey
- FaceTime – Watch or listen to content while facetiming, share you screen, and schedule calls even with Windows & Android users.
- Safari – Compact tab bar, tab groups and cross device tab syncing.
- Focus – Restrict notifications while on focus mode and display your status to contacts.
- Universal Control – Use your apple keyboard and mouse across your Mac and iPad.
- AirPlay – AirPlay your music from your Phone to your Mac.
- Photo To Text – Copy text from images and lookup addresses.
- Shortcuts – The Popular iOS App is now on Mac! Make your own automations with no code required.
- iCloud Private Relay – Secure Safari on any network encrypting your information with Apple.
Frequently Asked Questions
What does refurbished mean?
MacFinder refurbished is an inspected, upgraded, and quality-checked pre-owned device. Although refurbished has a definition, not all refurbishment processes are the same. Our refined process follows strict quality standards performed by our in-house technical team.
What’s included in the 1-year warranty?
We cover the hardware and operating system we provide with every device. During your warranty period, if a fault arises, the labour and parts required to fix the problem are free of charge. We also offer a battery service If your device reports it’s needed. Please see our warranty terms for exclusions.
What payment methods are available?
We accept all major credit and debit cards. Finance is available via PayPal as either Pay in 3 or instalments up to 24 months on orders above £199.
Can I part-exchange?
Yes! You can receive a free no-obligation quotation for your device. We also offer 20% extra for your item if you select payment via Store Credit.
Priority Delivery
We ship all mainland UK deliveries via DPD, who provide a timeslot delivery service. Excluding our Saturday delivery, we don’t have any premium UK shipment options as we aim to get every order delivered as fast as possible, free of charge. For international orders, we ship via DHL and a price is quoted based on the product weight and service selected at checkout.
1-Year Warranty
What does the MacFinder 1-Year Warranty include?
Our comprehensive 1-Year Warranty covers:
Free Repairs: Hardware faults fixed at no cost.
macOS Help: Support with operating system issues.
Battery Cover: Free replacement if service warning shows in year one.
Free Collection: Repairs collected free within 30 days.
Expert Support: Ongoing help, Mon–Fri, 9am–5pm.
How does MacFinder’s Warranty stand out?
Unlike standard warranties, MacFinder offers:
Apple Experts: Repairs by certified in-house technicians.
Fast Repairs: Most issues fixed within five days.
Battery Cover: Unique first-year battery support for laptops.
Can I extend my coverage beyond the 1-Year Warranty?
Absolutely! For Apple M-Series devices, we offer Service Plans that extend coverage up to five years. These plans include all the benefits of our standard Warranty, plus:
Buyback Guarantee: At least £100 store credit when you upgrade.*
Battery & Accessory Cover: Battery, charger and cable replacements if faulty.**
Flexible Payments: Pay monthly, yearly, or upfront. Billing starts after your warranty ends.
*Devices must be fully functional.
**Small excess fee applicable; see full terms and conditions.
Is accidental damage covered under the Warranty?
Our Warranty covers manufacturing defects and hardware failures. However, accidental damage, normal wear and tear, and third-party repairs are not included. For full details, please refer to our terms & conditions.
Microsoft 365 Family (1 Year)
One convenient subscription for up to 6 people. Includes premium Office apps, up to 6TB of cloud storage – 1 TB per person – and advanced security for all your devices.
Have A Question About Your Next iMac?
We’re available from 9am to 5pm, Monday to Friday, to assist with any queries you may have.
Send Us A Question
Your Hub
Track orders, manage trade-ins, view service plans, and get support all in one place with your MacFinder account.
Product Care
Explore your 1-year warranty and extend coverage up to 5 years with our Service Plan for added peace of mind and protection.
Certified Refurbished
Every Mac undergoes thorough testing, cleaning, and repairs by certified technicians to ensure it looks great and performs like new.
What Our Customers Say…
What’s This?
When New Price
At MacFinder, we sell various refurbished Apple products, including new and older models. To help our customers understand the value of these products, we display a "when new" price alongside some items. This is the price that the product was originally sold for when Apple first released it.
By showing the "when new" price, we aim to give our customers a clear idea of the savings, they can expect when purchasing a refurbished product. It also helps to provide context to the product's value, allowing customers to see how much they can save by choosing a refurbished model instead of buying new.
We take great pride in the quality of our refurbished products and believe that they offer a fantastic option for customers who want to save money without sacrificing quality or performance. By displaying the "when new" price alongside our products, we hope to make it easier for customers to make an informed decision about their purchase and feel confident that they are getting a great deal.
Product Condition
All systems provided are in 100% full working order and with our industry-leading warranty.We categorise our Macs into a standard grade which is what you would expect from a used Mac of it’s year and those with cosmetic imperfections. We never supply systems with technical faults unless clearly stated in the condition description. When pricing a system the condition grade is an attributing factor and you’ll see a reduction of price.
How Do We Grade Our Systems
All systems provided are in 100% full working order and with our industry-leading warranty. The conditions we describe below are only in relation to the cosmetic appearance of our machines. We never supply systems with technical faults unless clearly stated in the condition description. When pricing a system the condition grade is an attributing factor and a reduction of price will be seen on lower grades.
Standard Condition
The product is in good condition and is considered expected for its model and year. It may have a few scratches, minor dents or marks which are a sign of normal wear and tear. Our technicians have guidelines during preparation which separates any devices which we would consider to have cosmetic imperfections.
Cosmetic Imperfections
The product has a cosmetic defect. The defects may be limited to just one large dent or deep scratch alternatively it could consist of numerous minor scratches or marks. These cosmetic defects may include scratches, marks or dents either on the case or screen and because of this we individually photograph all fair condition systems.
If you’re budget conscious a fair condition system can be the ideal solution for those looking to save. We cannot stress enough that the defects are only cosmetic and the systems are completely functional with no damage to the internal components. All fair condition system components are meticulously inspected.
If you’re ever unhappy with a system you receive we offer a free 30 day return policy and we will happily exchange or refund your purchase.
Battery Life
- Fully tested
- Refurbished batteries limited to 80% design capacity or 1000 cycles
- 1 Year warranty for battery replacements if service required
- Expected 3+ hours as an average from 2011 – 2019 models
- Experience may vary depending on usage and conditions.
Is delivery free?
Yes, all UK mainland shipments are free of charge.
When do you ship orders?
We ship Monday to Friday, with no shipments on weekends or bank holidays.
What are your cut-off times for same-day dispatch?
- Monday: 8:00 am
- Tuesday to Friday: 1:00 pm
Orders placed after these times will be shipped the next working day.
Do Friday orders arrive on Saturday?
Yes, Friday orders are sent through DPD’s Saturday delivery service if placed before the cut-off time at no extra cost.
Can I choose my delivery day?
Absolutely. You can select a specific delivery date up to 30 days in advance, including Saturday or Sunday.
Who delivers my order?
All UK mainland deliveries are handled by DPD, using a tracked, insured, and signed-for service. High-value deliveries may require a PIN code on arrival for added security.
What about deliveries outside UK mainland?
Depending on your location, a delivery date and quote will be shown at checkout. We use DHL as our international courier.
What does the MacFinder 1-Year Warranty include?
Our comprehensive 1-Year Warranty covers:
Free Repairs: Hardware faults fixed at no cost.
macOS Help: Support with operating system issues.
Battery Cover: Free replacement if service warning shows in year one.
Free Collection: Repairs collected free within 30 days.
Expert Support: Ongoing help, Mon–Fri, 9am–5pm.
How does MacFinder’s Warranty stand out?
Unlike standard warranties, MacFinder offers:
Apple Experts: Repairs by certified in-house technicians.
Fast Repairs: Most issues fixed within five days.
Battery Cover: Unique first-year battery support for laptops.
Can I extend my coverage beyond the 1-Year Warranty?
Absolutely! For Apple M-Series devices, we offer Service Plans that extend coverage up to five years. These plans include all the benefits of our standard Warranty, plus:
Buyback Guarantee: At least £100 store credit when you upgrade.*
Battery & Accessory Cover: Battery, charger and cable replacements if faulty.**
Flexible Payments: Pay monthly, yearly, or upfront. Billing starts after your warranty ends.
*Devices must be fully functional.
**Small excess fee applicable; see full terms and conditions.
Is accidental damage covered under the Warranty?
Our Warranty covers manufacturing defects and hardware failures. However, accidental damage, normal wear and tear, and third-party repairs are not included. For full details, please refer to our terms & conditions.
Mac Lifespan Details
How long will my Mac receive macOS updates?
Most Macs get at least 7 years of major macOS updates after their release, with additional security updates continuing for a year or two after that.
What’s the longest-supported Mac to date?
Some models have received support for up to 11 years, like the Mac Pro (2013) and Mac Mini (2014). We expect 8–10 years of usable life from most models.
What happens when updates stop?
Your Mac will still work. You can browse the web, stream, email, and use apps like Microsoft Office well beyond official support. But if you handle sensitive data, we recommend upgrading for complete security.
Will newer Macs last longer?
Yes. Apple Silicon Macs (from 2020 onward) are expected to have even longer support, thanks to Apple’s full control over hardware and software.
How do I make my Mac last even longer?
With good care, like keeping it clean, avoiding damage, and maintaining the battery, your Mac can easily outlive its update cycle and stay useful for many years.
How Much Storage Do I Need?
256GB: Enough for most users thanks to cloud storage.
512GB: Better if you need offline access or work with larger files.
1TB+: Ideal for professionals handling high-resolution media or large projects.
256GB is enough for most day-to-day tasks, especially with cloud storage, keeping your files safe and accessible. Apple’s on-device storage is costly, so it’s best to choose based on what you need, not just want.
Who could I use for cloud storage?
Apple iCloud Drive: Best for Mac users. Built into macOS, it offers seamless file syncing across all Apple devices.
Google Drive: Great if you use Gmail or Google Docs.
Dropbox: A reliable, user-friendly choice for both personal and business use. Easy sharing and solid performance across all platforms.
Our Refurbished Device Condition Grades
All our devices are meticulously inspected and refurbished by certified technicians in the UK to ensure exceptional quality, regardless of condition. Here’s what each grade means:
New - Unsealed
Standard Condition
Cosmetic Imperfections
No matter which condition you choose, every device is refurbished to meet our strict standards for functionality and performance. Buy confidently, knowing you’re getting a great product at a fair price.
iMac 27-inch 5K Two Thunderbolt 3 Ports, Intel i7 4.2 GHz 4-core 16GB 256GB, Silver

Choose PayPal / PayPal Credit at checkout and select Instalments
Enter a purchase amount to calculate your monthly Instalments
Instalment Rate p.a. | Payments | Monthly Payments | Total Inc. Interest | Minimum Purchase |
---|---|---|---|---|
0.00% | 6 | £99.00 | ||
0.00% | 12 | £99.00 | ||
0.00% | 18 | £199.00 | ||
0.00% | 24 | £199.00 |
The monthly payment shown is an estimated amount and may not include taxes and shipping
Representative Example
Assumed credit limit | Purchase rate | Representative |
£1,200 | 23.9% p.a. (variable) | 23.9% APR (variable) |
How do instalment offers with PayPal Credit work?
With selected merchants, when you check out with PayPal Credit, you'll be shown a selection of instalment offers which enable you to spread the cost of your purchase across a number of repayments. These instalment offers allow you to choose a set monthly repayment over a fixed period to help spread the cost of larger purchases in a more manageable way.
Instalment offers will always have an interest rate lower than the standard variable rate. If you already have PayPal Credit, you can take advantage of these offers without having to reapply as long as you have enough available credit limit.
It is important that you think about whether you can afford the monthly repayment agreed for any instalment offer. This will be added to your monthly minimum repayment amount and will need to be paid each month.
If you fail to make repayments or in certain other circumstances, PayPal may remove your offer and any outstanding amount will be charged at 23.9% p.a. (variable). Please see the Credit Agreement for more details.
What Is PayPal Credit?
PayPal Credit is like a credit card, without the plastic. It's a credit limit that's attached to your PayPal account which you can use for your online purchases. If you have PayPal Credit it will be available as a funding source within your PayPal wallet and can be used for purchases in most places where PayPal is accepted. You can make purchases in the same way as you would with a normal credit card, by choosing PayPal Credit as your funding source at checkout.
For purchases less than £99.00, interest is charged at our standard rate of 23.9% p.a. (variable) if the full amount is not paid off by the date shown on your statement. In addition, PayPal Credit lets you access two types of promotional offers: 0% for 4 months on all purchases of £99.00 and over; and instalment offers with selected merchants.
Is PayPal Credit Available To Everyone?
No, PayPal Credit is only available to customers over 18 living in the United Kingdom (excluding Channel Islands and the Isle of Man). PayPal also have to assess a customer's creditworthiness, so you should have a good credit history to apply.
How Can I Apply For PayPal Credit?
Customers may be offered the opportunity to apply for credit on a website, if purchasing an eligible product and choosing to apply for an instalment offer using PayPal Credit. Otherwise customers can apply directly via PayPal's website.
Click here to see the full FAQ for PayPal Credit and view the Terms and Conditions.
Finance provided by PayPal Credit. Credit subject to Status. Terms and Conditions apply. MacRefresh Ltd acts as a broker and offers credit from PayPal Credit. PayPal Credit and PayPal Pay in 3 are trading names of PayPal UK Ltd, 5 Fleet Place, London, United Kingdom, EC4M 7RD.

Pay in 3

Check out securely with PayPal and choose Pay in 3
Subject to status. Terms and Conditions apply. UK residents only. PayPal is a responsible lender. Pay in 3 performance may influence your credit score. PayPal Credit and PayPal Pay in 3 are trading names of PayPal UK Ltd, 5 Fleet Place, London, United Kingdom, EC4M 7RD. Please note new credit agreements will be processed by PayPal (Europe) S.à r.l. et Cie, S.C.A. 22-24 Boulevard Royal L-2449, Luxembourg until November 1st 2023.
Click here to learn more about Pay in 3.