Really confused by the VCC in, is it 5V as in the description or 12V? I am applying 5V DC on VCC and 3V signal without a click on the relays.

The relay attached to your question requires 12vdc input to the coil. They are available with 5vdc coil input voltage. Hope this helps.

Is there an on-board way to make both relays work simultaneously, aside from a jumper wire between the two IN ports?

I’m not sure I really follow the purpose of your “ Without a Jumper “ . To make both work together they need to be linked OR the device you are triggering from needs to send 2 independent triggers. If the objective is just to avoid a physical jumper then the other option is a solder link on the underside.

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4pcs DC 5V Relay Module 2 Channel Relay Board with Optocoupler Support High or Low Level Trigger

Product ID: 361376111

Details

Connector Type
Through Hole
Contact Material
Nickel
Contact Type
Normally Open
Current Rating
10 Amps
Mounting Type
Through Hole

⚡10A max load power

🔌5V DC coil voltage

🛡️Optocoupler isolation

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71.31 DT

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Description

⚡ Power your projects with precision and confidence!

PLUG PLAY READY - Standard screw terminals and mounting holes for quick, secure installation.
HEAVY DUTY CAPACITY - Handles up to 250V AC or 30V DC at 10A — built for serious projects.
VERSATILE TRIGGERING - Supports both high and low level triggers for seamless microcontroller integration.
ROCK SOLID RELIABILITY - Optocoupler isolation ensures stable, fault-tolerant switching every time.
DUAL CHANNEL POWERHOUSE - Control two high-current circuits independently with ease.

The AEDIKO 4pcs DC 5V 2-Channel Relay Module features optocoupler isolation for reliable switching, supports high or low level triggers, and handles up to 10A at 250V AC or 30V DC. Designed for easy integration with microcontrollers, it offers fault-tolerant operation and secure mounting options, making it ideal for professional-grade electrical control applications.

Specifications

ASIN	B099MC4TJD
Best Sellers Rank	#25,911 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #611 in Industrial Electrical Controls & Indicators
Brand Name	AEDIKO
Coil Voltage	5 Volts (DC)
Connector Type	Through Hole
Contact Current Rating	10 Amps
Contact Material	Nickel
Contact Type	Normally Open, Normally Closed
Current Rating	10 Amps
Customer Reviews	4.4 4.4 out of 5 stars (66)
Included Components	module
Manufacturer	AEDIKO
Maximum Switching Current	10 Amps
Maximum Switching Voltage	250 Volts
Model	AE06233
Mounting Type	Through Hole Mount
Operation Mode	Off
Part Number	AE06233
Specification Met	RoHS
UPC	701715485006
Wattage	2

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71.31 DT

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In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

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