PlayCover runs iOS apps and games on Apple Silicon Macs and supports key mapping, according to its page.
WhatCable
WhatCable reports USB-C cable speed, charging power, and e-marker data in a Mac app for Apple Silicon.
About WhatCable
WhatCable is a menu bar app for Apple Silicon Macs that reads USB-C and USB Power Delivery details exposed by macOS and explains the port, cable, charger, adapter and connected device together in plain English. It identifies charging, data-speed and display bottlenecks, decodes e-marker data from marked cables, and can show the original macOS readings in engineer mode.
It works from the identity a cable reports and what the Mac negotiated, and cannot see inside the cable jacket. Contributed observations can be added to a searchable public database, with nothing uploaded without user action.
Key features
- Identifies whether cable, charger, or Mac limits charging rate
- Decodes e-marker speed, current rating, and vendor identity
- Shows data-speed bottleneck across port, cable, and device
- Flags display resolution and refresh shortfalls with cause
- Warns of mid-session overcurrent and reconnection faults
- Provides CLI with JSON output and port watch mode
Best for: People using an Apple Silicon Mac who need to check why a USB-C cable charges slowly or limits speed or display output.
Good for
- Explains charger, cable, port and device together instead of raw readings
- Shows original macOS data in engineer mode for verification
- Runs without helper daemon, private API use, or background uploads
Watch out for
- Limited to Apple Silicon Macs and data macOS exposes
- Cannot inspect inside the cable jacket, only reported and negotiated data
- Trust flags highlight unusual e-marker values but do not confirm a fake
WhatCable at a glance
- Website
- whatcable.uk
- Category
- Software & Utilities › Linux & Mac Apps
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
WhatCable alternatives
Tools and sites you could use instead, ranked by how closely they match.
Does It ARM lists apps and games reported to support Apple Silicon, alongside compatibility and performance information.
Macs Fan Control adjusts fan speeds on Apple computers, according to its repository description.
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WhatCable FAQ
Why is my Mac charging slowly?
WhatCable shows what the charger offers, what the cable supports, and whether the Mac is drawing the power it needs.
Does WhatCable upload my cable data?
No. Nothing is uploaded without your action, and the app has no background uploads.
Can WhatCable tell if a cable is fake?
No. It flags unusual e-marker data against USB Power Delivery rules, but that is not a guarantee a cable is fake.
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