Observed arrival · 2026-10-22
Re5k turns a 5K iMac back into a monitor
A pair of Mac apps lets supported iMacs act as external displays for Apple silicon Macs over a Thunderbolt cable.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Owners of supported 5K iMacs and Apple silicon Macs
- Worth noticing
- Its compatibility table distinguishes supported models from untested ones and flags Late 2015 5K iMacs as requiring a Thunderbolt 2 adapter.
Field notes
Setup is split between the two Macs: install the MacBook and iMac apps, connect them directly, then follow each machine’s permission and settings checklist. The compatibility table names several supported 27-inch 5K models but marks 21.5-inch 4K models as untested. The page also distinguishes Late 2015 5K iMacs, which use Thunderbolt 2, from later supported models.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue