Apple 24-inch iMac with Retina display - Silver:

Name: Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Silver - Used, Premium Condition
Brand: Apple
SKU: UACO2FS3XX21XXA
Price: 699 USD
Availability: OutOfStock
Rating: 4.71 (14 reviews)

8GB Memory | 256GB Solid-State Drive

3.2GHz 8-Core Apple M1 Processor

Mid 2021

Used, Premium condition

System Configuration:

Memory:
- 8GB Onboard RAM
Storage:
- 256GB Solid-State Drive
Networking:
- Built-in 802.11a/b/g/n/ac Wi-Fi
- Built-in Bluetooth 5.0
- 2 x Thunderbolt 3 / USB 4 Ports
Video:
- 24-inch (diagonal) Retina 4.5K LED-backlit widescreen display with TFT technology
- Apple Silicon M1 8-Core GPU with VRAM
Pre-Loaded/Licensed Software:
- Supports up to macOS 26.x Tahoe (Current Version)

OWC Tested. Quality You Can Trust.

OWC individually inspects and fully tests every pre-owned computer to confirm full functionality and accurate grading. All refurbishments and/or upgrades are performed by our Apple Certified Technicians. That's why OWC is the most trusted name in Mac refurbishments.

Experience huge savings on iMac!

Any iteration of iMac is a fantastic all-in-one machine, and when purchased through MacSales.com, you can count on all the horsepower at a fraction of the price of buying new. Add this 2021 iMac to your workflow at dramatic savings!

The future is here. Apple Silicon system on a chip (SoC) processors integrate the CPU, GPU, Neural Engine, I/O, and so much more onto just one tiny chip for incredible performance and power efficiency.

8GB of Onboard Memory

This iMac already has all the memory you need built-in. It’s one upgrade this machine will never need.

256GB Solid-State Drive

This machine comes with a 256GB Apple OEM/Factory Solid-State Drive. This SSD brings some serious horsepower to the track. With SSDs operating dramatically faster than hard drives, you will love the performance gains of having this SSD.

Apple Model Numbers: MGPK3LL/A, MGPH3LL/A, MGPM3LL/A, MGPC3LL/A, MGPL3LL/A, MGPJ3LL/A, MGPN3LL/A, MGPD3LL/A

INCLUDES
SPECS
CONDITION
WARRANTY
RATINGS

Includes

Apple 24-inch iMac (M1 Series, Mid 2021)
Power cord
Supports up to macOS 26.x Tahoe (Current Version)

Keyboard and mouse not included

OWC recommends using a wired keyboard for the initial OS setup, as Bluetooth keyboards sometimes fail to pair until the initial OS setup is complete

Machine Specifications*

Apple 24-inch iMac with M1

(Retina 4.5K, Mid 2021) - Silver

Model ID: iMac21,1 View how to find model ID

Supports macOS 11.3 Big Sur* through macOS 26.x Tahoe (current version). This Mac will come pre-installed with macOS 11.3 Big Sur or later, and free updates are available from Apple up to the latest supported version. For details on how to optionally roll back to an earlier supported OS, please see the article Rolling Back to an Older macOS.

(*) Oldest supported OS can vary depending on the exact date of manufacture, and may differ from what is shown.

Processor

Processor Type
- Apple M1 chip
- 8-core CPU with 4 performance cores and 4 efficiency cores
- 8-core GPU
- 16-core Neural Engine

Memory

Memory (RAM)
- 8GB installed
- RAM is integrated into CPU - not user upgradeable.

Internal Storage

Bus Type
- NVMe Hard Drive Bus
Drive Bay
- One On-board Drive Bay
Bay 1
- 256GB Solid-State Drive

External Connectivity

Ports
- (2) USB 3.2 Gen 2 Type-C ports
- (2) Thunderbolt / USB 4 ports (40Gb/s)
- Headphone port / 3.5 mm headphone jack
- Gigabit Ethernet via power adapter (RJ-45 connector)

Power

Line Voltage
- 100-240V AC
Frequency
- 50Hz to 60Hz, single phase

Network

Bluetooth
- Built-in Bluetooth 5.0
Ethernet
- Optional 10/100/1000BASE-T Gigabit Ethernet via power adapter (included)
Wi-Fi
- Built-in 802.11a/b/g/n/ac Wi-Fi

Audio

Speakers
- Built-in high-fidelity six-speaker system
Microphone
- Three microphones
Headset Support
- Support for Apple Earphones with Mic

Display / Monitor

Screen
- 24-inch (diagonal) Retina 4.5K LED-backlit widescreen display with TFT technology
- 4480 by 2520 resolution at 218 pixels per inch
- Support for one billion colors
- 16:9 aspect ratio
Typical brightness
- 500 nits

Graphics / Video

Graphics Processor
- Apple Silicon M1 8-Core GPU with shared system memory
Details
- Simultaneously supports full native resolution on the built-in display and:
- One 6016-by-3384 (6K) external display at 60Hz
- Support for extended desktop, video mirroring, and AirPlay Mirroring

Input

Keyboard
- Not included
Mouse
- Not included

Environmental

Operating Temperature
- 50° to 95° F (10° to 35° C)
Storage Temperature
- -40° to 116° F (-40° to 47° C)
Relative Humidity
- 5% to 95% noncondensing
Maximum Operating Altitude
- 10,000 feet
Maximum Storage Altitude
- 15,000 feet
Maximum Shipping Altitude
- 35,000 feet

Physical

Color
- Silver
Height
- 18.10" (46.10cm)
Width
- 21.5" (54.70cm)
Depth
- 5.80" (14.70cm)
Weight
- 9.88lb. (4.48kg)

*While researched thoroughly via independent resources, OWC does not make any claim to accuracy or completeness of these specifications.

unknown Condition

Used, Premium:

With these nearly pristine units, it's a challenge to find any imperfections to the exterior housing or screen. The outer casing of the device may show very faint scratches or wear. The screen of the device is in near-perfect condition. Images shown are examples of actual units, but exact unit condition will vary. Tested, 100% fully functional.

Screen: No perceivable wear from a distance of 12" / 0.3M or more.
Outer Casing: Near-perfect overall condition with minimal detectable wear. Very faint scratches or scuffs may be present, but are hard to find and virtually imperceivable from distance of 12" / 0.3M or more.

Warranty

The best warranty is one you never have to use - but should the need occur - we're proud to provide a superior level of support and service coverage to our customers.

90 Day OWC Fulfilled Limited Warranty

Customer Ratings

Write a Review 4.7 / 5 13 out of 14 (93%) reviewers would recommend this product

Verified Buyer

Reviewer: puufoto-20129

Rating: 5/5 always good February 4, 2025 Our company has purchased multiple drives, macs etc from OWC_Macsales over the years. One of the best online retailers we have run across for any product, let alone computing systems

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Silver - Used, Premium Condition.

Response from OWC, Support February 4, 2025 Wow, thank you so much for your glowing review! We're thrilled to hear that you and your company have consistently chosen OWC MacSales for your needs over the years. It means the world to us to be recognized as one of the best online retailers in the industry! Your continued support truly inspires us to keep delivering top-notch products and service. We're excited to help you again in the future!

Verified Buyer

Reviewer: RickR4009095885

Rating: 5/5 Love my iMac November 14, 2024 I've been and apple user for a long time noe but this my first iMac and I love it.

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Silver - Used, Premium Condition.

Response from OWC, Support November 15, 2024 Wow, thank you so much for your fantastic review! We're thrilled to hear that you're loving your iMac and that it's been a great addition to your Apple experience. Welcome to the iMac family! If you ever have any questions or need support, we're here to help. Enjoy your new device! Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: nowin-3374

Rating: 5/5 Great value purchase September 19, 2024 I usually buy Mac systems refurbed, and this new iMac saved me some bucks. I opt to get a level or two above the base model, and am very pleased. The money saved on the purchase goes to a few peripherals or accessories, making it even better. Loooong time customer, very satisfied, and will buy from them again when I need an upgraded system.

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Silver - Used, Premium Condition.

Response from OWC, Support September 19, 2024 We're thrilled to hear that you found great value in your new iMac and that upgrading to a higher model worked out so well for you! It's fantastic that you can use the savings for peripherals and accessories—what a smart way to enhance your experience! We're so grateful to have you as a long-time customer, and we can't wait to assist you with your future upgrades. Here’s to many more happy computing moments ahead! ? Don't hesitate to contact us with further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: jpinter-747

Rating: 5/5 GR8 Service September 4, 2024 WHAT A DEAL! Everything went smoothly and fast; you can't say that about most other offerings. I bought several things from Other World Computing and have never been disappointed. However this new trade in serves as a WOW factor. They even pay for shipping. I got almost half the value of my new used computer upgrading to an M1 Mac. They don't supply the return packaging but will be glad to send anything they may have on hand if you request it. Fortunately I kept my old box so the service was a breeze. I can highly recommend this service and would not hesitate to take advantage of it in the future. John

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Blue - Used, Premium Condition.

Response from OWC, Support September 4, 2024 Wow! Thank you so much for your amazing review! We're thrilled to hear that you had such a smooth and speedy experience with our trade-in service. It's fantastic to know that our shipping offer and value for your new M1 Mac made a big impression. We truly appreciate your loyalty to OWC and are so glad you found everything to your satisfaction. Your recommendation means the world to us, and we're here to help anytime you need!

Verified Buyer

Reviewer: Reviewer4111595125

Rating: 5/5 Apple Mac update July 2, 2024 Decided to finally update from my old 2009 iMac. This Apple Re-furbished 24" iMac Retina 4.5K (2021) from MacSales is really great, running tha newer operating systems and with the OWC Thunderbolt 3 Dock I also purchased from there all my old peripherals are working great,

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Blue - Apple Factory Refurbished, Keyboard/Mouse sold separately.

Response from OWC, Support July 2, 2024 Thank you for sharing your experience! We're thrilled to hear that you're enjoying your new 24" iMac Retina 4.5K and that our Thunderbolt 3 Dock is helping you keep all your peripherals running smoothly. If you have any questions or need further assistance, feel free to reach out. Enjoy your upgraded setup! https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: Reviewer3582336188

Rating: 5/5 REFURBISHED - PERFECT April 30, 2024 This computer is great. Arrived on time, great value. Easy to set up. Looks like a dream. So happy I got it. I know "Refurbished" can be scary, but when the right people do the job, it's a wonderful way to get the equipment that you need for a reasonable amount. It all depends on how through the staff is at making sure the equipment works without any issues. Great job!!

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Pink - Apple Factory Refurbished, Keyboard/Mouse sold separately.

Response from OWC, Support April 30, 2024 We're thrilled to hear that you're enjoying your computer! Thank you for choosing our refurbished option and for your trust in our team's expertise. We're committed to providing reliable equipment at great value, and we're delighted that you're happy with your purchase. Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: Reviewer2800215592e

Rating: 5/5 Perfect condition and quick delivery February 9, 2024 I received everything I asked for in mint condition and the delivery was on time. Very happy!

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Pink - Apple Factory Refurbished, Incl KB/Mouse.

Response from OWC, Support February 9, 2024 Thank you so much for your amazing review! We're thrilled to hear that the 24" iMac arrived in perfect condition and that you received everything you asked for. Our team takes pride in providing top-notch products and ensuring prompt delivery. It means the world to us that you are happy with your purchase. We appreciate your support and look forward to serving you again in the future! Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: CarolGelfand

Rating: 5/5 very happy January 28, 2024 this computer replaced my 2008 i mac and wow is there a big difference . my 2008 still works but was not being accepted by other websites because the browser was too old for them to recognize. this new computer is fast and so far i am not being rejected by any of the websites i use. i just had it set up for me yesyerday and m still trying to figure out how to get access to all my passwords but you would never guess this is a used computer and after using it for one day i am very happy

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Purple - Used, Premium Condition.

Response from OWC, Support January 29, 2024 Thank you so much for your amazing review! We're thrilled to hear that your new computer is making a big difference for you. It's incredible how much technology has advanced since 2008, and we're glad to have been able to provide you with a fast and reliable upgrade. We're confident that you'll continue to have a smooth browsing experience, without any rejections from websites. Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: ExcitedRabbit-50499

Rating: 5/5 So love this purchase January 7, 2024 Perfectly packaged, great cosmetic condition and working order.

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Pink - Apple Factory Refurbished, Keyboard/Mouse sold separately.

Response from OWC, Support January 8, 2024 Thank you so much for your amazing feedback! We're thrilled to hear that you are loving your purchase from us. It's fantastic to know that it arrived perfectly packaged and in great cosmetic condition, ensuring that it met your expectations. We truly appreciate your support and we're here for anything else you may need. Enjoy your new item! https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: wgpinc

Rating: 5/5 My new iMac November 30, 2023 I haven't really gotten my new iMac set up yet. I've been really busy and I'm stumped getting the data off my 2010 iMac 27". Some advice (transfer it via the cloud, Get a big fast external drive and spend hours downloading and uploading.)

I would recommend this item to a friend!

Response from OWC, Support November 30, 2023 Thank you so much for your 5-star review! We're thrilled to hear that you've purchased a new iMac. We completely understand how busy life can get, but don't worry, we're here to help you with any setup or data transfer issues you may have. Our team can assist you with transferring your data via the cloud or guide you in getting a big, fast external drive to make the process easier. We appreciate your support and look forward to making your iMac experience seamless and enjoyable.

Verified Buyer

Reviewer: FoxxerHunt

Rating: 2/5 Good condition but missing peripherals. June 21, 2023 The computer was in great shape. However did not include the keyboard and mouse that are bundled with an iMac. Seemed like an excellent deal until you buy both the mouse and keyboard and realized you could have just purchased a brand new iMac for the same money. No effort was made to disclose these parts were missing.

This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Silver - Used, Premium Condition.

Response from OWC, Support June 22, 2023 We appreciate your honest feedback. We're glad to hear that your iMac has met all your expectations. Please rest assured that we will certainly pass along your feedback and that this information is not easily seen on our website. Don't hesitate to contact us with further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: QuaintSnail-59512

Rating: 4/5 Overseas user April 21, 2023 As an overseas consumer and Mac user it is an excellent service provided by MacSales .com. This is my second purchase of a used IMAC from Mac sales and I did not have any major issues so far. Generally Mac machines are reliable and long lasting so getting a new one is frequently not necessary..similar to purchasing a used Mercedes from a reputable dealer. I fully recommend MacSales.com. They deliver quickly..packaging is professionally done and the product is perfect.

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Yellow - Used, Premium Condition.

Response from OWC, Support April 21, 2023 Thank you for that feedback! We are very happy to hear that you are enjoying the Apple 24" iMac M1! Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: AdventurousAnt-70831

Rating: 5/5 Perfect IMAC at a great price April 5, 2023 This is my first IMAC and I got a great price on a great machine. The transaction was easy, delivery fast, and customer service was outstanding. I will not hesitate in the future to purchase used Apple products from MacSales!

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Green - Used, Premium Condition.

Response from OWC, Support April 7, 2023 Thank you for choosing OWC for your technical needs. We are so happy to hear that you are enjoying the Apple 24" iMac! Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/

Verified Buyer

Reviewer: WittyArmadillo-32827

Rating: 5/5 Love MacSales on OWC March 2, 2023 Good price, great condition, super efficient online shopping experience.

I would recommend this item to a friend! This review is from Apple 24" iMac Retina 4.5K (2021) 8-core Apple M1, Blue - Used, Premium Condition.

Apple 24-inch iMac with Retina display - Silver 3.2GHz 8-Core Apple M1 Processor OWC SKU: UACO2FS3XX21XXA Used, Premium condition 90 Day OWC Fulfilled Limited Warranty

Reviews (14)

Sold Out

Apple 24-inch iMac with Retina display - Silver:

3.2GHz 8-Core Apple M1 Processor

Mid 2021

Includes

Machine Specifications*

unknown Condition

Warranty

90 Day OWC Fulfilled Limited Warranty

Warranty

90 Day OWC Fulfilled Limited Warranty

14 Day Money-Back Return Policy

Customer Ratings