Which end of cable is 5 volts input and which is 12 volts output?

5 volts is the USB-A input side. The output is on the barrel plug and is 12V.

I have a 5v/3a power bank that I'm planning to use to power up a 12v 1.5a monitor. Will this work?

The max output current for 12V is 1 amp. Your monitor requires 1.5 amps so technically the draw over the rating of the adapter and will not work.

Could this be used for audio equipment as a 12v trigger to activate (an amplifier) from another device that has USB but no trigger output?

Probably will work. I used a 5v usb connector in my car to feed this device. It gave me a 12 v output to supply a radar detector.

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FARSENSE USB to DC 12V Step Up Power Cable (3ft), DC Jack 5.5 x 2.5mm (3.5 x 1.35mm) USB Boost Converter with LED Indicator

FARSENSE USB to DC 12V Step Up Power Cable (3ft), DC Jack 5.5 x 2.5mm (3.5 x 1.35mm) USB Boost Converter with LED Indicator

Product ID: 406924295

Details

Amperage
1 A
Brand
FARSENSE
Color
Black
Compatible Devices
12V DC barrel
Compatible Phone Models
less than 10W
Connector Type
USB Type A

⚡12V output power boost

💡LED power indicator

🔋1A max output current

€ 21.22

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Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Power up smarter, anywhere you go!

SMART SAFETY SHIELD - Built-in intelligent IC protects against over-current, over-voltage, and short circuits—power with peace of mind.
COMPACT TRAVEL READY - Lightweight 39g design with a sleek frosted shell fits seamlessly into your on-the-go lifestyle.
EFFORTLESS POWER BOOST - Step up your USB 5V to a reliable 12V output—perfect for your low-power devices.
PLUG PLAY CONVENIENCE - No setup fuss—just connect and power your smart speakers, routers, mini fans, and more instantly.
UNIVERSAL COMPATIBILITY - Supports a wide range of 12V devices under 10W, from game consoles to development boards—your versatile power companion.

The FARSENSE USB to DC 12V Step Up Power Cable converts standard 5V USB power to a stable 12V output at 1A max current, ideal for low-power 12V devices. Featuring a compact, lightweight design with a frosted shell and LED indicator, it ensures safe operation with built-in intelligent circuitry protecting against electrical faults. Perfect for travel and everyday use, this plug-and-play converter supports a broad range of devices including smart cameras, routers, and mini fans.

Specifications

ASIN	B09NSHWLV9
Amperage	1 A
Best Sellers Rank	#74,216 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #268 in Power Converters
Brand	FARSENSE
Built-In Media	1 x USB Cable
Color	Black
Compatible Devices	12V DC barrel interface equipment below 10W
Compatible Phone Models	less than 10W power equipment
Connectivity Technology	USB
Connector Type	USB Type A
Current	DC
Current Rating	1 A
Customer Package Type	simple box
Customer Reviews	4.2 4.2 out of 5 stars (324)
Enclosure Material	Plastic
Input Voltage	12 volts
Item Weight	0.03 kg
Manufacturer	FARSENSE
Mfr Part Number	UC12
Model Name	UC12
Model Number	UC12
Number of Items	2
Output Current	1 A
Output Voltage	12 volts
Power Plug	No Plug
Power Source	Corded Electric
Special Features	Lightweight Design
Total Usb Ports	1
UPC	797444852486
Unit Count	1 Count
Wattage	10 watts
Wired Charging Connector Type	USB Type A

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€ 21.22

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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