Nextion Foca Max 5V2A Output USB To TTL Serial Converter Board


2 in stock

Foca Max is a USB to TTL serial converter board. With a 8-26V DC external power input, Foca Max brings a stable power source and convenience of USB to TTL communication for all series and sizes of Nextion HMI display

876.00 3,000.00

2 in stock

Foca Max is a USB to TTL serial converter board with maximum 5.5V2A output. For USB to TTL conversion, the Foca Max can be power supplied by USB only or USB together with external DC 8-26V, The USB and external DC power supplies are isolated by using a diode (SS34) to avoid the current backflowed between them.

Note: as for the Nextion HMI display size less than 4.3”, you can only use the USB for power supply, size large than 4.3”, a external DC 8-26V for power supply is recommended.


  • SILABS CP2102 chip, maximum baud rate of 2Mbps 
  • High-power and energy-efficient DC-DC converter chip TPS54331 with 8-26V wide voltage input and 5V2A output
  • Solid capacitors, high Q inductors components
  • LED indicators for input/output power and TX/RX communication
  • Small voltage ripple within 100mA
  • Plug and Use, no firmware programming required


Model name: Foca Max

USB Voltage input: 5-5.5V

USB type: USB 2.0

DC Input: DC 8-26V

DC Power Socket: DC-005 (5.5*2.1mm)

Voltage output: 5-5.5V

Current output: 2A(maximum)

Voltage ripple: <100mV

Working temperature: -20°C ~ 70°C

PCB size: 50mm*50mm*1.6mm

Max baud rate: 2Mbps

TTL level: 3.3V


SKU: IM190620001 Categories: ,
Weight 0.01 kg


Additional information

Model name Foca Max
USB Voltage input 5-5.5V
USB type USB 2.0
DC Input DC 8-26V
DC Power Socket DC-005 (5.5*2.1mm)
Voltage output 5-5.5V
Current output 2A(maximum)
Voltage ripple <100mV
Working temperature -20°C ~ 70°C
PCB size 50mm*50mm*1.6mm
Max baud rate 2Mbps
TTL level 3.3V

Warranty Condition

Does this product checked before shipping them to me?

Yes., of course.We have a professional Quality Control team. They will check carefully for each item we received from factory to avoid sending defective goods to our customers.

If a item is found defective in our Technical QC  team , it will be returned to the factory. Please don’t worry about receiving a defective item because we are committed to being a trustworthy

Products Guaranteed

Factories that supply Sonoff are strictly evaluated by us, and we provide you an even better reassurance of consistent  high quality thanks to our Sonoff Technical QC team. We double-check the contents of all orders carefully before dispatch to our customers a. Sonoff will maintain all product serial number and products ID for stop delicacy.

Lead time

Processing time 1-2 business days normally: During this period, we do strict quality-control tests and get the items carefully packed.

Delivery time

Delivery time 3-8 business days normally in India.

 Who will be delivered the product to me

You order  will dispatch from your nearest local authorized dealer by ShipRocket/Delhivery.com.

What should I do if my items arrived damaged?

When using shipping services, we want the delivery to be as fast as possible. At the same time, we expect from the courier company to handle our shipments with great care throughout their journey. Packages reach several depots and go through multiple hands until the driver delivers them to their recipients. Even though we might assume it is the courier’s fault for the damaged delivery of the parcel, several other situations explain it is not always the case.

If you order got damaged or lost during transits so  Rarely, rough handling by the courier can lead to physical damage to your goods, e.g. broken screen. In this condition, Apply for Insurance claim terms & conditions applicable.

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