USB Adapter for Arduino

Is it worthy of buying this updated version with Auto-reset circuit and 500MA self-recovery insurance with USD2.7?

Hmm, how are you planning to use it and what would your configuration be otherwise?

If you are just looking to connect an Arduino to a Raspberry Pi (Iā€™m guessing given your username) over serial, a USB cable is enough, no?

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Thanks for your reply. I got the idea now.