RA-USB Multi-Port USB Fast Charger – 50W, USB-C PD & QC 3.0 - Image 2

RA-USB Multi-Port USB Fast Charger – 50W, USB-C PD & QC 3.0

$19.00

Tiny but mighty: charge four devices at once from one outlet, whether that’s the wall or the accessory outlet on the back of your vintage amp.

50 W total: 20 W USB-C Power Delivery + three USB-A ports
Quick Charge 3.0 for compatible Android phones
Keeps your RA-Twin II charged right at the stereo
Overvoltage, overcurrent, short-circuit and heat protection
1-year warranty, Ottawa-based support

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Categories: Radique Audio Products, Electronics Tags: 4-port charger, audio accessories, fast charger, multi-port charger, phone charger, QC3.0 charger, quick charge, Radique Audio, travel charger, USB charger, USB power delivery, USB-C PD charger, vintage stereo compatible, wall adapter

Description
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Description

Radique Audio · Tiny but Mighty

Four fast-charging ports, one tiny charger

The RA-USB delivers 50 W across a USB-C Power Delivery port and three USB-A ports, so your phone, tablet, earbuds and RA-Twin II all charge at once. Plug it into the wall, or into the AC outlet on the back of your vintage amp.

At your stereo Four ports With the RA-Twin II Specs FAQ

The short answer

The RA-USB is a compact 50 W multi-port USB charger from Radique Audio: one 20 W USB-C Power Delivery port plus three USB-A ports with Quick Charge 3.0, charging up to four devices at once. It’s 45 mm wide, protected against overvoltage, overcurrent, short circuits and overheating, certified CE, FCC and RoHS, and covered by a 1-year warranty. Plug it into a wall outlet, or into the accessory outlet on the back of a vintage receiver or amplifier.

Radique Audio RA-USB charger plugged into the AC outlet on the back panel of a vintage receiver

Made for the back of your vintage amp

A huge range of vintage receivers and amplifiers have AC accessory outlets on the back panel. Plug the RA-USB into one and your RA-Twin II, phone and earbuds charge right at the stereo, with no extra wall outlet and no tangle of adapters.

Switched outlet: the RA-USB is live only while the amp is on.
Unswitched outlet: it charges around the clock.
Outlets are usually marked with a rating, such as “100W MAX”; the RA-USB’s 50 W maximum fits comfortably within it.

Four ports, charging at full speed

Smart, adaptive fast charging recognizes each device and delivers the right power level: no wasted energy, no unnecessary heat.

USB-C Power Delivery

A 20 W USB-C port for fast-charging current phones and tablets.

Three USB-A ports

Including Quick Charge 3.0 (developed by Qualcomm) for compatible Android phones, plus ports for earbuds, watches and your RA-Twin II.

50 W in total

Charge up to four devices at once from one outlet: 20 W + 15 W + 10 W + 5 W across the ports.

Protected

Overvoltage, overcurrent, short-circuit, over-temperature and over-charging protection keep your devices safe. Certified CE, FCC and RoHS.

Compact

Just 45 × 68.5 × 27 mm, in black ABS with the full-colour Radique Audio logo. It fits on a desk, a nightstand or an audio rack.

A travel essential

One charger replaces a handful of wall adapters in your bag, for hotels, cottages and Airbnbs across North America.

The perfect partner for the RA-Twin II

Keep your RA-Twin II Bluetooth adapter charged right where it lives, next to your stereo, while your phone charges alongside it. Together they’re a complete vintage-to-modern upgrade kit.

Want the best sound too?

Pair the RA-Twin II with our shielded Gold Series cables in the RX bundle (phone to stereo) or the TX bundle (stereo to Bluetooth headphones).

Specifications

RA-USB
Ports	1 × USB-C (Power Delivery) · 3 × USB-A
Total output	50 W (PD 20 W + 15 W + 10 W + 5 W)
Fast charging	USB Power Delivery · Quick Charge 3.0 (Qualcomm)
Protection	Overvoltage, overcurrent, short-circuit, over-temperature, over-charging
Certifications	CE · FCC · RoHS
Plug	North American wall outlets and amplifier accessory outlets
Size	45 × 68.5 × 27 mm (W × H × D)
Finish	Black ABS with full-colour Radique Audio logo
Warranty	1 year, Radique Audio

RA-USB questions

Can I plug the RA-USB into my vintage amplifier?

Yes, if it has AC accessory outlets on the back panel, as a huge range of vintage receivers and amplifiers do. The RA-USB’s 50 W maximum fits comfortably within the typical rating marked beside those outlets, such as “100W MAX”.

Should I use the switched or unswitched outlet?

Either works. A switched outlet powers the RA-USB only while the amp is on; an unswitched outlet keeps it charging around the clock.

How many devices can it charge at once?

Four: one on the 20 W USB-C Power Delivery port and three on the USB-A ports, for 50 W in total.

Will it fast-charge my phone?

Yes. The USB-C port supports USB Power Delivery for current iPhones and Android phones, and a USB-A port supports Qualcomm Quick Charge 3.0 for compatible Android phones.

Can it charge a laptop?

It’s designed for phones, tablets, earbuds, watches and small devices like the RA-Twin II. Its 20 W USB-C port isn’t meant for laptops that need more power.

Can I use it when I travel?

Yes, anywhere in North America: one compact charger replaces several wall adapters for hotels, cottages and Airbnbs.

Do you ship to the United States?

Yes. On Radique Audio products we add the US import duties and fees at checkout and prepay them for you, so there’s nothing to pay at delivery.

What warranty does it have?

A 1-year Radique Audio warranty, with support from our team in Ottawa. See the warranty FAQ.