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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DC 5V to DC 12V USB Voltage Step Up Converter

DC 5V to DC 12V USB Voltage Step Up Converter

Product ID: 406924295

Details

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

⚡Boosts 5V USB to 12V DC output

💡LED indicator for power status

🔋Delivers stable 1A max current

€ 19.48

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your gear anywhere, anytime — don’t get left in the dark!

SMART SAFETY SHIELD - Built-in intelligent IC safeguards against over-current, over-voltage, and short circuits, keeping your gear protected.
COMPACT TRAVEL READY - Lightweight (39g) and sleek frosted shell design fits perfectly in your tech kit for on-the-go power needs.
EFFORTLESS POWER BOOST - Seamlessly converts standard 5V USB to a reliable 12V output, perfect for your low-power devices.
PLUG PLAY CONVENIENCE - No setup fuss—just connect and power your wireless routers, smart cameras, mini fans, and more instantly.
UNIVERSAL COMPATIBILITY - Supports a wide range of 12V devices under 10W, making it the ultimate versatile power companion.

The FARSENSE USB to DC 12V Step Up Power Cable is a compact, lightweight boost converter that transforms a 5V USB input into a stable 12V DC output at 1A max current. Featuring a frosted shell and LED power indicator, it ensures safe, reliable power delivery with built-in protections against electrical faults. Ideal for low-power 12V devices like smart cameras, routers, and mini fans, this plug-and-play cable is your perfect travel and everyday power solution.

Specifications

ASIN	B09NSHWLV9
Additional Features	Lightweight Design
Amperage	1 Amps
Best Sellers Rank	#90,574 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #340 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 Amps
Customer Package Type	simple box
Customer Reviews	4.2 4.2 out of 5 stars (315)
Enclosure Material	Plastic
Input Voltage	12 Volts
Item Weight	0.03 Kilograms
Manufacturer	FARSENSE
Mfr Part Number	UC12
Model Name	UC12
Model Number	UC12
Number of Items	2
Output Current	1 Amps
Output Voltage	12 Volts
Portable	Yes
Power Plug	No Plug
Power Source	Corded Electric
Total Usb Ports	1
UPC	797444852486
Unit Count	1 Count
Wattage	10 watts
Wired Charging Connector Type	USB Type A

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TrustScore 4.5 | 7,300+ reviews

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