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Small black circuit board with USB connector and pin headers, double-sided gold finish

LORDWORLD

LORDWORLD USB to UART Debugger Module for Raspberry Pi 5, Black

SKU CH-FKH5-TFS9S

A USB-to-UART debugger for Raspberry Pi 5 with 3.3 V and 5 V TTL switching, onboard fuse and surge protection, supporting Windows 7, 8, 8.1, 10, 11, Mac, Linux and Android

  • USB-UART debugging for Raspberry Pi 5
  • Cross-platform support on Mac, Linux, Android, Windows 7/8/8.1/10/11
  • Self-recovery fuse plus transient-voltage suppressor protects against overcurrent and surges
  • Onboard IO protection circuits guard against static and surge damage
  • Selectable 3.3 V or 5 V TTL levels via jumper for flexible logic interfacing

Raspberry Pi 5 debug module

The LORDWORLD USB to UART debugger is built for Raspberry Pi 5 boards. It gives developers a direct serial console for firmware bring-up, kernel debugging and headless configuration. The module draws power from the host USB port and includes a selectable 3.3V or 5V TTL level jumper to match the Pi's logic voltage.

USB serial interface limits

Communication runs over a standard USB-to-UART bridge, so throughput is bounded by the bridge and host driver rather than the Pi itself. The module works with Windows 7 through 11, Mac, Linux and Android without extra drivers. Cable length and host controller quality set the practical cable run; very long leads may degrade signal integrity at higher baud rates.

Voltage selection and protection headroom

Onboard jumpers let you switch between 3.3V and 5V output to suit the target, while a self-recovery fuse and transient-voltage suppressor guard against over-current and voltage spikes. The protection handles typical bench transients, but sustained over-voltage or industrial-level surges exceed its design margin. The board suits lab and prototype use rather than permanent deployment in harsh electrical environments.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 90% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

Should I pick the 3.3 V or 5 V TTL level for my Raspberry Pi 5?

The Pi 5 uses 3.3 V logic on its UART pins, so set the onboard jumper to 3.3 V to avoid damaging the GPIO header.

What does the high baud-rate claim mean when I connect this module to a Pi 5?

It indicates the USB-to-UART bridge can sustain fast serial speeds, letting you capture early boot logs or kernel output without dropped characters.

Which USB standard does the debugger use and what does that limit in practice?

The module plugs into a standard USB port and draws its power from the bus, so the 5 V supply current is capped by the host controller’s USB power budget.

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