Laptop cable detection

WhatCable looks handy (seen via DenseDiscovery):$ whatcable=== Port-MagSafe 3@1 (MagSafe 3) ===Charging · 94W chargerPower is flowing. No data connection.• Charger advertises up to 94W• Currently negotiated: 20V @ 4.69A (94W)Charging: Charging well at 94WCharger and cable are well-matched.=== Port-USB-C@1 (USB-C) ===Slow USB device or charge-only cableOnly USB 2.0 is active. If you expected high speed, the cable may not support it.• USB 2.0 only (480 Mbps), no high-speed data• No e-marker detected. The cable may have one, but macOS only reads it above 3A or with Thunderbolt.Connected devices:• Apple Watch Magnetic Charging Cable - Full Speed (12 Mbps)=== Port-USB-C@2 (USB-C) ===Nothing connectedPlug a cable into Port-USB-C@2 to see what it can do.=== Port-USB-C@3 (USB-C) ===Nothing connectedPlug a cable into Port-USB-C@3 to see what it can do.Pro features: charging diagnostics, negotiation tracing, liquid detection. Run whatcable --pro for details.