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

**URL:** https://aio.lv/en/product--inline-33307f--12664689
**Data updated:** 2026-09-23 04:25 (EEST)
**Category:** Serial & Parallel Cables
**Manufacturer:** InLine
**Manufacturer code:** 33307F
**EAN:** 4043718353170
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-10-27 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--inline-33307f--12664689

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.10.2026 | free |
| Pickup points | 29.10.2026 | 1.99 EUR |
| Courier delivery to door | 29.10.2026 | 4.99 EUR |

## Summary 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.

## Long 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.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 22 x 78 x 11 |
| Weight | 0.014 kg |
| Operating relative humidity (H-H) | 5 - 95 |
| Chipset | FTDI FT232RNL |
| Package weight | 29 g |
| Mac compatibility | Yes |
| Operating temperature (T-T) | -15 - 70 |
| Height | 11 mm |
| Output voltage | 5 |
| Width | 22 mm |
| Depth | 78 mm |
| Product colour | Black |
| Host interface | USB 2.0 |
| Country of origin | China |
| Package depth | 165 mm |
| Package height | 11 mm |
| Package width | 100 mm |
| Package type | Polybag |
| Connector 1 | USB Type-A |
| Connector 2 | Terminal block |
| Output interface | TTL |
| Baud rate | 3000 Kbit/s |
| Windows operating systems supported | Windows 8.1, Windows XP, Windows 10, Windows 11, Windows 8, Windows 7 |
| Mac operating systems supported | MacOS |
| Package volume | 200 cm³ |
| Connector gender | Male/Female |

## FAQ

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

The price is 28.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 26.10.2026 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12664689/69954895_large.webp