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header-product InLine 33307F USB 2.0 to TTL Serial Converter Repeater Isolator 5V Black
29.49 €

InLine 33307F USB 2.0 to TTL Serial Converter Repeater Isolator 5V Black

InLine 33307F USB to TTL Serial Converter Photo 1
InLine 33307F USB to TTL Serial Converter Photo 2
InLine 33307F USB to TTL Serial Converter Photo 3
InLine 33307F USB to TTL Serial Converter Photo 4
InLine 33307F USB to TTL Serial Converter Photo 1
InLine 33307F USB to TTL Serial Converter Photo 2
InLine 33307F USB to TTL Serial Converter Photo 3
InLine 33307F USB to TTL Serial Converter Photo 4

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InLine 33307F USB 2.0 to TTL Serial Converter Repeater Isolator 5V Black

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Short description

InLine 33307F serial converter, repeater, and isolator featuring USB 2.0 to TTL connectivity and a 5V output voltage. Designed for reliable data communication and interfacing in various electronic setups. Compatible with multiple Windows and macOS operating systems, providing flexible connectivity for technical and industrial applications.
Available for order: 49 pcs.
Warranty: 2 Years
SKU: 12664689
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
30.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
04.11.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.03 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
04.11.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Product information

Description

The InLine 33307F USB 2.0 to TTL Serial Converter Repeater Isolator 5V Black is a versatile hardware tool designed to establish stable communication between a computer and electronic devices utilizing a TTL or UART interface. Built with an FTDI FT232RNL chipset, this adapter functions through a virtual COM port, ensuring smooth data transfer for various technical tasks. It features a USB Type-A connector on the host side and a 4-pin screw terminal block for the device connection, covering GND, TXD, RXD, and a 5V power supply. Integrated safety mechanisms such as PTC fuses, electrostatic discharge protection, and protective diodes on the data lines help safeguard connected hardware during operation. Compact in dimensions, measuring 22 mm in width, 78 mm in depth, and 11 mm in height, this device easily integrates into existing technical setups and development environments.

Advantages

This serial converter provides dependable performance through its quality FTDI chipset, supporting a wide range of baud rates from 300 bits per second up to 3 megabits per second. The inclusion of a 4-pin screw terminal enables secure and straightforward wiring without requiring soldered connections or additional plugs. Built-in protective features like resettable fuses and ESD diodes reduce the risk of hardware damage from electrical surges or miswiring. Furthermore, the USB-powered 5V output allows direct power delivery to low-current peripherals or microcontrollers, minimizing the need for an external power source. Broad operating system compatibility ensures seamless integration into Windows, macOS, Linux, and Android environments.

Suitable for

  • Configuring and diagnosing microcontrollers and electronic modules
  • UART and TTL serial communication tasks
  • Software and hardware development and testing
  • Powering low-current peripherals directly via USB 5V output
  • Service and maintenance of industrial or hobbyist electronics

This converter may not be suitable for applications requiring logic levels other than 5V, as the fixed logic level cannot be adjusted to 3.3V or other voltages without risk of incompatibility. It is also not designed to supply high-current devices through its 5V power output, as the integrated fuse protection is intended only for low-current consumption peripherals.

Key specifications

  • Host interface: USB 2.0 via USB Type-A connector
  • Device interface: TTL / UART via 4-pin screw terminal block
  • Pin assignment: GND, TXD, RXD, +5V
  • Logic level: Fixed 5V
  • Supported baud rates: 300 b/s to 3 Mbit/s
  • Chipset: FTDI FT232RNL
  • Safety features: 200 mA PTC fuse, ESD protection, protective diodes, resettable PTC fuse on output
  • Status indicators: Power, Transmit, Receive LED lights
  • Dimensions: 22 mm width, 78 mm depth, 11 mm height
  • Color: Black
  • Operating temperature range: -40 °C to +85 °C

To use the device, connect the USB Type-A end to an available port on a compatible computer, allowing the operating system to recognize the virtual COM port via the FTDI driver. Secure the wires from the target electronic device into the 4-pin screw terminal block, ensuring correct alignment of the ground, transmit, receive, and 5V power lines. Monitor the operational status using the integrated power, transmit, and receive indicator lights during data transmission. Once connected, initiate communication through standard terminal or development software configured to the appropriate baud rate.

What to consider before purchase

  • Verify that your target hardware operates strictly on a 5V TTL logic level
  • Check that your operating system has appropriate driver support for the internal chipset
  • Ensure that connected peripherals do not exceed the low-current limitations of the USB power supply
  • Confirm physical space availability for the compact adapter and wiring setup

For optimal reliability, always verify wiring polarity before powering on connected devices and ensure that operating environment temperatures remain within the specified range of -40 °C to +85 °C.

All features
Dimensions (WxDxH): Dimensions of the product (Width x Depth x Height).
22 x 78 x 11
Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.014 kg
Operating relative humidity (H-H):
5 - 95
Chipset: Set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals. It is usually found in the motherboard of a computer. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance.
FTDI FT232RNL
Package weight: Weight of the packaged product.
29 g
Mac compatibility: Product can be used with Apple Mac software and/or hardware.
Yes
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
-15 - 70
Height: The measurement of the product from head to foot or from base to top.
11 mm
Output voltage:
5
Width: The measurement or extent of something from side to side.
22 mm
Depth: The distance from the front to the back of something.
78 mm
Product colour: The colour e.g. red, blue, green, black, white.
Black
Host interface: Interface that enables a host controller to communicate with a driver.
USB 2.0
Country of origin: Country where the device is made. Aka Country of manufacture (COM).
China
Package depth: The distance from the front to the back of the packaging.
165 mm
Package height: The distance from the top to the bottom of the packaging.
11 mm
Package width: The distance from one side of the packaging to the other.
100 mm
Package type: The type of product package e.g. box.
Polybag
Connector 1: This is the first connector in the device.
USB Type-A
Connector 2: This is the second connector in the device.
Terminal block
Output interface: The ports (sockets) where the device is connected via connectors and cables to external devices.
TTL
Baud rate:
3000 Kbit/s
Windows operating systems supported: Windows vesions wich can be used with the device.
Windows 8.1, Windows XP, Windows 10, Windows 11, Windows 8, Windows 7
Mac operating systems supported: Mac operating systems e.g. OS X can be used with the device.
MacOS
Package volume:
200 cm³
Connector gender: To distinguish parts on a cable interface, connectors are grouped under genders. Sockets or jacks are considered to be female whilst plugs are referred to as male.
Male/Female

Description

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Product comparison

The InLine 33307F USB 2.0 to TTL serial converter, repeater and isolator with 5V output voltage and Windows and MacOS support is a USB 2.0 to TTL serial converter, repeater, and isolator designed for reliable data communication and electronic projects. Compared to alternative models from the same product family that utilize RS-232 or RS-485 standards for office and industrial equipment, this model is specifically tailored for TTL logic levels and hardware programming. All models in this series share broad compatibility with Windows and macOS operating systems, alongside built-in signal isolation.

⚙️ Below is a comparison of technical specifications and interface types, detailing connection standards and the primary purpose of each converter.

ParameterInLine 33307F (TTL)InLine (RS-232, 33307B)InLine 33307A (RS-232)InLine 33307D (RS-485)InLine 33307C (RS-485)InLine 33307E (RS-232)Practical significance
PC InterfaceUSB 2.0USB 2.0USB 2.0USB 2.0USB 2.0USB 2.0All models provide straightforward connection to modern computers via a standard USB port.
Target InterfaceTTLRS-232RS-232RS-485RS-485 (with FTDI chipset)RS-232 with lightning protectionInterface selection depends on connected hardware: TTL for microcontrollers, RS-232 for peripherals, RS-485 for industrial networks.
OS CompatibilityWindows and macOSWindows and macOSWindows and MacWindows and MacOSWindows and macOSWindows and macOSBroad compatibility ensures seamless integration with most popular desktop operating systems.
Special Features5V output voltage, isolatorIsolator, repeaterIsolator, repeaterGalvanic isolationFTDI chipset, isolationLightning protection, isolatorSpecialized features protect equipment and maintain reliable communication under various conditions.

◎ The table below outlines which use cases and user needs are best addressed by each available model.

Use caseRecommended productWhy
Microcontroller programming, debugging, and TTL logic projectsInLine 33307FProvides direct connection to TTL devices with 5V power output and signal isolation.
Connecting standard industrial or office RS-232 equipmentInLine (33307B) or InLine 33307ADesigned for stable serial data transmission using the RS-232 standard with interference protection.
Setting up industrial RS-485 networksInLine 33307D or InLine 33307CUtilizes the RS-485 standard for robust industrial automation and long-distance serial communication.
Working with RS-232 equipment in environments prone to electrical surgesInLine 33307EEquipped with integrated lightning protection for enhanced equipment safety.
Your choice among these converters should be based entirely on the interface requirements of your hardware. The InLine 33307F is the ideal choice for electronics enthusiasts and engineers working with TTL logic, microcontroller programming, and setups requiring a 5V output with signal isolation. For legacy serial devices or industrial automation networks, choose the corresponding RS-232 or RS-485 models.
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Customer reviews

Customer questions

FAQ

How much does the InLine 33307F USB to TTL Serial Converter cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 30.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All InLine products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized InLine service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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