USB-C is everywhere — but not all USB-C cables and ports are created equal. In 2025, understanding what your cable can actually do could save you from slow charging, fuzzy video, or frustrating data transfers.
The Problem with USB-C
USB-C is a connector shape, not a standard. The same port can support wildly different protocols — from USB 2.0 (480Mbps) to Thunderbolt 4 (40Gbps). You could plug in a high-end cable and get USB 2.0 speeds without even knowing it.
USB-C Standards in 2025
- USB 2.0 via USB-C: 480Mbps. Common on cheap accessories and older phones
- USB 3.2 Gen 1 (5Gbps): Good for everyday storage transfers
- USB 3.2 Gen 2 (10Gbps): Fast enough for most external SSDs
- USB4 Gen 2 (20Gbps): Excellent for pro workflows
- USB4 Gen 3 (40Gbps): Matches Thunderbolt 4 in speed
- Thunderbolt 4 / 5: Intel standard — 40Gbps (TB4), up to 120Gbps (TB5)
How to Tell What Your Cable Supports
Check for icons on the cable — a lightning bolt means Thunderbolt, a "SS" means SuperSpeed USB. When in doubt, buy certified cables from reputable brands and check the spec sheet.
Power Delivery and Cables
USB-C Power Delivery can now deliver up to 240W (USB PD 3.1). Make sure your cable is rated for the wattage your charger outputs, or you'll get slower charging.
0 Kommentare