usb car charger 4 port

Most 4‑port car chargers mix USB‑C and USB‑A ports. Common arrangements are two USB‑C plus two USB‑A, or built‑in USB‑C cables paired with one USB‑A and one USB‑C port.

Common built‑in protections include SmartChip or similar intelligent circuitry, short‑circuit protection, overcharge protection, and safeguards against overheating and power surges.

These chargers are designed for standard vehicle accessory/DC power and commonly list compatibility with 12–24 V car accessory inputs.

Per‑port specs vary by model. Examples include USB‑C ports around 25–30 W each (with PD/PPS support) and USB‑A ports around 12–18 W — commonly 2.4 A (approximately 12 W) for high‑speed USB‑A charging.

Listings reference broad compatibility with smartphones, tablets, laptops and portable gaming devices. They also note support for modern phone fast‑charge standards and full‑speed charging for tablets and laptops where supported by the charger.