Apple iMac 21.5" 2017, Core i5, 8GB, 1TB HDD, Radeon Pro 555, Silver

★★★★☆ 3.9 (90)

The 3.0 GHz quad-core Intel Core i5 with Turbo Boost up to 3.5 GHz and the AMD Radeon Pro 555 discrete GPU handle everyday tasks and light creative work smoothly. Its 3840 x 2560 UHD display and 8 GB RAM (upgradable to 32 GB) make it a solid choice for detailed visuals and multitasking. Best for home office users who need a reliable, refurbished all-in-one for productivity and media consumption.

CPU Intel 7th Generation Core i5
RAM 8 GB
Storage 1 TB
GPU AMD Radeon Pro 555
Form Factor aio
OS macOS
Apple iMac 21.5" 2017, Core i5, 8GB, 1TB HDD, Radeon Pro 555, Silver desktop
54 総合スコア

現在、販売店の最新価格はありません

概要

The 30-Second Version

A gorgeous 4K display trapped in a 2017 body with a hard drive that belongs in a museum. Fine for light Mac work, painful for everything else.

Pros & Cons

長所

  • That 4K display is still stunning for the price 99th
  • Apple build quality and reliability are near the top of the charts 90th
  • Thunderbolt and plenty of USB-A ports for older peripherals
  • Refurbished price makes it a cheap Mac entry point

短所

  • 8GB of RAM is one of the worst configs we've seen
  • Spinning 1TB HDD feels ancient in an SSD world
  • Radeon Pro 555 is a mid-pack GPU at best
  • No upgrade path for the CPU or GPU

オーナーの声

The Word on the Street

3.9/5 (90 reviews)
👍 Owners consistently praise the display quality and overall build, saying it still feels premium years later.
👎 The most common gripe is the sluggish hard drive, with multiple buyers saying they immediately upgraded to an SSD.
🤔 Some buyers feel the refurbished price is fair for a Mac, while others think the aging internals make it a poor value.

購入者の評価が時間とともにどう変化したか

独自

顧客が実際にレビューを書いた時期に基づいています。発売当初の高評価が続いたかどうかがわかります。

購入者の評価は時間とともに向上しています
1★2★3★4★5★Q3 '21: 1.0★ · 1 レビューQ4 '21: 2.7★ · 3 レビューQ1 '22: 3.6★ · 7 レビューQ3 '22: 3.0★ · 4 レビューQ4 '22: 2.0★ · 1 レビューQ1 '23: 5.0★ · 4 レビューQ2 '23: 4.0★ · 2 レビューQ3 '23: 3.9★ · 7 レビューQ4 '23: 4.8★ · 5 レビューQ1 '24: 5.0★ · 3 レビューQ2 '24: 4.0★ · 2 レビューQ3 '24: 5.0★ · 1 レビューQ1 '25: 5.0★ · 2 レビューQ2 '25: 4.0★ · 1 レビューQ3 '25: 1.0★ · 1 レビューQ4 '25: 1.0★ · 1 レビュー1374142753212111Q3 '21Q1 '22Q4 '22Q2 '23Q4 '23Q2 '24Q1 '25Q3 '25Q4 '25
平均評価満足(4〜5★)不満(1〜2★)バーの高さ = レビュー件数
  1. Q1 202485/1005.0★3 レビュー

    Buyers praised the machine's performance and condition but found the included keyboard and mouse cheap and clumsy.

    • The iMac works perfectly even as used/refurbished, performing well after upgrades.
    • The included keyboard and mouse are cheap, clumsy, and barely usable.
    • The display is loved by users.
  2. Q4 202392/1004.8★5 レビュー

    Buyers are highly satisfied with the purchase, praising its condition, performance, and value. Minor issues include cheap accessories and Bluetooth connectivity.

    • Device performance, condition, and value praised.
    • Offered accessories are cheap; used wireless peripherals have Bluetooth issues.
    • Excellent for business or personal use; multiple units ordered.
    • Refurbished unit arrives clean; works well after setup.
  3. Q3 202359/1003.9★7 レビュー

    Mixed feedback: some buyers praise it as great value and perfect for basic use, but others warn it's outdated, slow, and warn against buying.

    • Several users find the iMac perfect for their needs, fast, and a great bargain.
    • Revived complaints about the included keyboard and mouse being of poor quality or missing.
    • Multiple reviews call the iMac outdated, slow for a child, and not worth buying.
    • One review describes it as described but also notes it's outdated hardware.
  4. Q1 2023100/1005.0★4 レビュー

    All reviewers are fully satisfied, highlighting savings, daily functionality, and easy setup of a refurbished iMac.

    • Excellent value; buyers saved money compared to new models.
    • Performs well for both work and personal daily use.
    • Easy setup process; computer matches description exactly.
    • No defects reported; reliability not a concern in this period.
  5. Q3 202240/1003.0★4 レビュー

    Mixed reviews: some praise the picture and sound, but others report long shipping delays and a destroyed hard drive.

    • Good picture, sound, and ease of use for desk setup.
    • Shipping took 2 months, unacceptable wait time.
    • Hard drive was destroyed upon arrival, unusable.
    • Uncomfortable and not worth the price for some users.
  6. Q1 202243/1003.6★7 レビュー

    Mixed period: half of buyers thrilled with value and performance, others report severe slowness, a boot failure, and misleading sales support for RAM upgrades.

    • Boot failure after a few months; unit will not turn on.
    • Extreme slowness during setup and basic tasks, force quits needed.
    • Geek Squad could not install RAM as promised; misleading online chat.
    • Great value, easy setup, works great, extra peripherals included.
  7. Q4 202127/1002.7★3 レビュー

    Mixed reviews: one excellent performance, two major issues with updates, power cord, and peripherals.

    • Device won't update despite multiple attempts.
    • Wrong power cord and poor-quality Bluetooth keyboard and mouse.
    • iMac performs all tasks well and exceeds expectations.
    • Bluetooth keyboard non-functional, causing frustration.

日付のある顧客レビュー 45 件を暦四半期ごとに集計しています。期間別の分析は英語です。

実証データ

Performance

The 3.0GHz quad-core i5 handles everyday tasks fine, but that 1TB HDD is the bottleneck that drags everything down. Booting macOS, launching apps, even opening Finder windows feels sluggish compared to any modern SSD-based machine. The Radeon Pro 555 is a mid-pack performer at best, fine for light photo editing but not much else. The 8GB of RAM lands in the bottom 10% of all desktops we track, which is rough for multitasking in 2025.

Performance Percentiles

CPU 19.5
GPU 51.1
RAM 9.2
ポート 50.1
ストレージ 46.3
信頼性 99.3
ユーザー評価 90.2

Specifications

Full Specifications

Processor

CPU Intel 7th Generation Core i5
Cores 4
Frequency 3.0 GHz

Graphics

GPU AMD Radeon Pro 555
Type Discrete

Memory & Storage

RAM 8 GB
RAM Generation DDR4
Storage 1 TB
Storage Type HDD

Build

Form Factor aio
Weight 5.7 kg / 12.5 lbs

Connectivity

USB-C Ports 2
USB Ports 4
Thunderbolt 2 x Thunderbolt 3
HDMI 0
Wi-Fi ✓
Bluetooth ✓
Ethernet Gigabit Ethernet

System

OS macOS

vs Competition

Against something like the Minisforum UM760 Slim or GMKtec Nucbox K8 Plus, this iMac gets absolutely smoked on raw performance and modern connectivity. Those mini PCs come with faster CPUs, NVMe storage, and more RAM for similar money. The HP OmniDesk and Dell Tower desktops also offer better upgradeability. But none of them run macOS, and none have a 4K display built in. If you specifically want a Mac with a great screen, this is your cheapest ticket. If you just want a fast desktop, look elsewhere.

Spec Apple iMac 21.5" Lenovo T Series Towers Legion Tower 5a Gen 10 Dell Desktop ECT1250 HP OMEN GT16-0364 CLX SET TGMSETRTU5204BM MSI Aegis ZS2 A9NVP-1407US
CPU Intel 7th Generation Core i5 AMD Ryzen 7 7800X3D Intel Core Ultra 7 265 AMD Ryzen 7 8700F Intel Core i9 14900KF AMD Ryzen 9 9900X
RAM (GB) 8 32 32 32 64 32
Storage (GB) 1024 4096 2048 1024 8192 2048
GPU AMD Radeon Pro 555 NVIDIA GeForce RTX 5070 Ti Intel UHD Graphics NVIDIA GeForce RTX 5070 NVIDIA GeForce RTX 5070 NVIDIA GeForce RTX 5070
Form Factor aio mid-tower sff mid-tower mid-tower mid-tower
Psu W - 850 180 850 850 750
OS macOS Windows 11 Home Windows 11 Home Windows 11 Home Windows 11 Home Windows 11 Home
Compare Compare Compare Compare Compare
製品 CPUGPURAMポートストレージ信頼性ユーザー評価
Apple iMac 21.5" 19.551.19.250.146.399.390.2
Lenovo T Series Towers Legion Tower 5a Gen 10 Compare 73.593.178.188.498.170100
Dell Desktop ECT1250 Compare 88.458.781.874.582.87099.1
HP OMEN GT16-0364 Compare 69.789.387.297.953.67099.1
CLX SET TGMSETRTU5204BM Compare 94.989.396.584.299.211.694.8
MSI Aegis ZS2 A9NVP-1407US Compare 92.489.387.290.582.837.399.6

価格

Value & Pricing

At $350, you're paying for the display and the Apple logo more than the performance. If you need a Mac for light browsing, email, and maybe some casual photo work, it's not a terrible deal. But you'll want to budget for an external SSD or a RAM upgrade immediately, which eats into the savings fast.

詳細情報

Overview

This is a 2017 iMac wearing a nice suit. The 21.5-inch 4K display is still gorgeous, and Apple's build quality remains top-notch, but the internals are showing their age in ways that matter. The 8GB of RAM and a spinning 1TB hard drive are the real story here, not the pretty aluminum shell. At $350 refurbished, it's a tempting entry into the Mac ecosystem, but you need to know exactly what you're signing up for.

Common Questions

Q: Can I upgrade the RAM on this iMac?

Yes, but it's a pain. The 21.5-inch model requires removing the display to access the RAM slots, which is not a casual DIY job. It supports up to 32GB, but most people will want a professional to do it.

Q: Is the 1TB hard drive really that bad?

Honestly, yes. It's a 5400 RPM spinning drive in a world where even budget laptops ship with NVMe SSDs. Boot times and app launches will feel slow. An external SSD via USB-C or Thunderbolt is the easiest fix.

Q: Can this iMac run the latest macOS?

It depends on the version. This 2017 model has been dropped from the newest macOS releases, so you'll be stuck on an older version. That means no more security updates eventually, which is worth considering for a machine you plan to keep.

Who Should Skip This

If you're looking for a fast, modern desktop for gaming, video editing, or heavy multitasking, this isn't it. Go get a Minisforum UM760 Slim or a GMKtec Nucbox K8 Plus instead. You'll get way more performance for the same money, just without the pretty Apple display.

Verdict

Buy this if you want a beautiful 4K Mac for light tasks and you're willing to live with slow storage and limited RAM. Skip it if you need anything resembling modern performance. The display is the star, the internals are the supporting cast that keeps forgetting their lines.

Usage Scores

総合 (54.2)AI/LLM (22)ゲーム (44.5)携帯性 (39)クリエイター (45.1)ビジネス (60.8)開発 (43.2)Home Office (54.8)Workstation (39.7)
  • 総合54.2
  • AI/LLM22
  • ゲーム44.5
  • 携帯性39
  • クリエイター45.1
  • ビジネス60.8
  • 開発43.2
  • Home Office54.8
  • Workstation39.7

その他の構成3

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