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SmallRig 4751 240W four-port USB-C power adapter, US plug, matte dark finish

SmallRig

SmallRig 4751 240W 4-Port USB-C PD Power Adapter

SKU CH-287G-RQRNW

A 240W four-port USB-C charger delivering up to 140W per port with intelligent power distribution, measuring 4.8 x 3.5 x 1.4 inches and weighing 23.4 oz

  • Charges multiple devices at once with 240 W total output
  • Powers demanding laptops through a single port at up to 140 W
  • Uses PD 3.1 for fast, efficient charging across four USB-C ports
  • Fits in a bag at 4.8 × 3.5 × 1.4 in and 23.4 oz
  • Protects every device with per-port short-circuit and overcurrent safeguards

240W Four-Port USB-C Charger

The SmallRig 4751 delivers 240W total output across four USB-C ports, supporting PD 3.1 for rapid charging of laptops, cameras, smartphones and V-mount or NP-F batteries. It suits photographers, videographers and mobile professionals who need a single high-power supply for multiple devices on location or at a desk.

Sustained Multi-Device Output

Intelligent power distribution allocates current across all active ports, maintaining up to 140W on a single port while balancing load when several devices are connected. Each port includes short-circuit and overcurrent protection, so the adapter runs stably during extended charging sessions without thermal throttling or safety trips.

PD 3.1 Practical Limits

The USB-C PD 3.1 interface caps per-port output at 140W, so devices requiring more than that must draw from multiple ports or a dedicated supply. Total simultaneous draw cannot exceed 240W, and the US-standard AC plug limits direct use to regions with compatible mains voltage and socket type.

Highlights

  • Charges multiple devices at once with 240 W total output
  • Powers demanding laptops through a single port at up to 140 W
  • Uses PD 3.1 for fast, efficient charging across four USB-C ports
  • Fits in a bag at 4.8 × 3.5 × 1.4 in and 23.4 oz
  • Protects every device with per-port short-circuit and overcurrent safeguards

Specifications

No published specifications for this item yet.

Questions about this item

Does the 240 W total output generate noticeable heat or fan noise when all four USB-C ports run continuously?

The adapter uses intelligent power distribution across its four USB-C ports, allocating up to 140 W per port, and its compact 4.8 x 3.5 x 1.4 in enclosure is designed for sustained operation without a fan.

What cables or plug types must I already own to use this US-standard adapter with my V-mount and NP-F batteries?

You need USB-C cables that support the required power delivery for each battery charger; the unit provides four USB-C ports and a US-standard AC plug, so no extra adapters are required for domestic outlets.

Will the smart distribution logic reduce port speed when I mix a new 140 W laptop with older USB-C gear?

The intelligent allocation automatically balances the 240 W budget among connected devices, so the laptop can draw up to 140 W while older gear receives the remaining power without manual switching.

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