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Prototyping > Data Converters

USB to TTL Serial UART RS232 Adaptor (PL2303)

SKU: 018-USB-PL2303HX

$5.54 AUD, inc GST
$5.04 AUD, exc GST
USB to TTL Serial UART RS232 Adaptor (PL2303)
5.54 AUD

SKU: 018-USB-PL2303HX

$5.54 AUD, inc GST
$5.04 AUD, exc GST
12 reviews 0 5 4.9
In stock, with a short lead time. 75 units dispatch in 7 to 28 days (in addition to the shipping method you choose). Our timing and stock is accurate. Delivery to you by Mon, 12th of Mar with Express Post within Australia.
Shipping Offer

USB to TTL converters are an essential for prototyping - they provide a direct interface with the target device. This module connects to your computer USB port and there are 4 wires which connect with your target device.


  • Fully enclosed professional finish.
  • Built-in PL2303
  • Designed to be used for USB to TTL electronic projects
  • TTL interface output, easy to connect to your MCU
  • Dual 3.3V and 5V Power output (by Changing the red wire termination)
  • Can independantly power the circuit with 5V or 3.3V
  • Compact design


  • Red - power. This pin provides up to 500mA current. YOU MUST NOT use other power supplies if you choose to power the target device with this Adaptor.
  • Black - ground (always needed, regardless if the Adaptor is powering the target device or not)
  • White RX (3.3V / 5V)
  • Green TX (3.3V / 5V)

3.3V and 5V Selection:

Open the plastic case (twist the USB connector and then evenly pull apart the plastic case) and change the red wire termination from the pad marked 5V or 3V3.


Supports the following Windows OSes:

  • Windows 98SE
  • Windows ME
  • Windows 2000 SP4
  • Windows XP SP2 and above (32 & 64 bit)
  • Windows Server 2003 (32 & 64 bit)
  • Windows Server 2008 / 2008 R2 (32 & 64 bit)
  • Windows Vista (32 & 64 bit)
  • Windows 7 (32 & 64 bit)
  • NOTE: For Windows 7, please use RC build 7100 or above.

This product is listed in:

Documentation and Resources:

Product Comments

Customer Reviews

  1. Review by David verified purchaser

    As always, Core are selling a great product at a great price (Posted on 4/11/2017)

  2. Review by Mark verified purchaser

    I am very happy with this product as it has enabled me to program my Nextion screen and also my RC controller. (Posted on 13/10/2017)

  3. Review by Chris verified purchaser

    worked fine with ubuntu 16.04 linux, no need to find drivers. (Posted on 5/09/2017)

  4. Review by Peter verified purchaser

    Works as expected, arrived promptly (Posted on 4/07/2017)

  5. Review by Aidan verified purchaser

    I managed to fix my router without needing a serial connection, but the cable arrived as expected and I'm sure will help save me some time in the future! (Posted on 6/03/2017)

  6. Review by Terrence verified purchaser

    This cable is simple, efficient and with the flying leads can be used for many applications, an excellent product all round. (Posted on 28/11/2016)

  7. Review by Shane verified purchaser

    Works well :) (Posted on 4/10/2016)

  8. Review by Maayan verified purchaser

    Works great. I'm using Linux Ubuntu so its compatible with it too. (Posted on 15/04/2016)

  9. Review by Vincent verified purchaser

    Perfect, exactly what I needed. Delivery only took a few days, much better than ordering from overseas Ebay seller. Recommended. (Posted on 7/02/2016)

  10. Review by Sean - Did what it was supposed to do verified purchaser

    The cable worked first time. Price was also very competitive. (Posted on 25/04/2015)

  11. Review by Peter - Great value verified purchaser

    Works well on Win7 and XP. Used it as terminal interface connector to an Atmel controller with lower speed (19.6kBd). The 5V/3.2V option makes it really versatile. The USB enclosure is a little bulky compared to moulded FTDI cables but the voltage selection option and price make up for that. (Posted on 6/07/2014)

  12. Review by Daniel87 - Great product! verified purchaser

    It works really nice on windows 7. I used it in a project with Atmel microcontrollers. I really appreciate it because in the past, I had to conect a usb/RS232 adapter and then use a max232 to get TTL levels. It was about 26 dollars. Now for only 4.20, I got a much smaller and nicer solution. Believe me, it's worth it.
    However, I couldn't get it working on windows 8. (Posted on 21/09/2013)

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
NSW, 2289

Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.