Refurbished Mac mini M4 256GB Silver, 16GB memory
£677
Lowest Excellent price 
Back Market
- 1‑year warranty
- 30‑day returns
- Free shipping
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Prices checked 5 Oct, 16:10
Other Mac mini versions
Storage
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Refurbished Mac mini prices today
5 offers from 3 sellers today, £677 to £959.
What Excellent, Good and Fair look like
The grade describes looks only, as each seller grades it. Every seller here gives a 1‑year warranty. Each seller words its own grades, so here is what each seller calls it.
From £677 for this configuration, at 3 of 3 sellers
- Amazon Renewed calls it Premium or Excellent
- Back Market calls it Premium or Excellent
- MusicMagpie calls it Pristine
Shown on a Mac mini M2, for illustration.
From £822 for this configuration, at 1 of 3 sellers
- Back Market calls it Good
- Amazon Renewed calls it Good
- MusicMagpie calls it Very Good
Shown on a Mac mini M2, for illustration.
From £831 for this configuration, at 1 of 3 sellers
- Back Market calls it Fair
- Amazon Renewed calls it Acceptable
- MusicMagpie calls it Good
Shown on a Mac mini M2, for illustration.
Mac mini specs
- Processor
- Apple M4 with 10-core CPU, 16-core Neural Engine
- Memory
- 16GB unified memory
- Graphics
- Apple M4 with 10-core GPU
- Shipped with
- macOS 14.0.0 or above
- Latest software
- macOS 27
- Does not have
- Wheels
- Bluetooth generation
- 5.3
- Wi-Fi generation
- 6E
- Thunderbolt port count
- 3
- Thunderbolt generation
- 4
- Part numbers
- MU9D3B/A, FU9D3LL/A, G1CF4LL/A, FU9D3D/A, FU9D3F/A, MU9D3
- Released
- November 8, 2024
- Discontinued
- September 22, 2026
- Weight
- 1.48 lb
- Size (H x W x D)
- 1.97in x 5in x 5in
Questions about the Mac mini
What is MU9D3B/A?
MU9D3B/A is Apple's part number for the Mac mini M4 256GB Silver, made for the UK (the B/A suffix). Apple released it in November 8, 2024. Apple sold it new until September 22, 2026. It runs macOS 27. Other part numbers for the same device: FU9D3LL/A, G1CF4LL/A, FU9D3D/A, FU9D3F/A.
Which seller has the cheapest refurbished Mac mini?
Today it is Back Market, at £677 for a Excellent (A) unit with 1‑year warranty. The cheapest Good unit is £822 at Back Market. The cheapest Fair unit is £831 at Back Market.
What warranty comes with a refurbished Mac mini?
It depends on the seller. On this page: Back Market 1‑year warranty, Amazon Renewed 1‑year warranty, MusicMagpie 1‑year warranty. Return windows: 14 days at MusicMagpie; 30 days at Back Market and Amazon Renewed.
Is a refurbished Mac mini worth buying?
Yes, for most buyers. A refurbished Mac mini performs like a new one for less money, and a desktop that never leaves your desk carries little of the risk of a used laptop. On 7 October 2026, Back Market listed the M1 Mac mini with 8 GB and 256 GB at $488, about 30% below Apple's $699 launch price. eBay Refurbished listed the M4 with 16 GB and 256 GB at $729, $170 less than Apple's new M6 Mac mini with the same memory and storage at $899.