Waveshare Industrial USB to 4CH TTL Converter USB to UART with Multi Protection Circuits Multi Systems Support by waveshare - Used condition

Waveshare Industrial USB to 4CH TTL Converter USB to UART with Multi Protection Circuits Multi Systems Support — Open-Box, 12% Off

Name: Waveshare Industrial USB to 4CH TTL Converter USB to UART with Multi Protection Circuits Multi Systems Support
Brand: waveshare
SKU: awhd-us-b09sz33j9h
Price: 21.92 USD
Availability: InStock

Brand: waveshare

Condition: Used - Mint

$21⁹²

$24⁹⁹

-12% Save $3⁰⁷

Updated: 20 days ago

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Description

Extending USB to 4CH TTL (UART) with hardware flow control, allows concurrent and independent communication for each channel

Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance

Onboard IO protection circuit for surge suppress and ESD protection, safe and stable communication

Aluminium alloy enclosure with oxidation dull-polish surface, CNC process opening, solid and durable, well-crafted

Onboard TTL serial port 3.3V and 5V voltage level switch, allows selecting TTL level. Quality USB-B connector, and IDC connector with fool-proof design.

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Product Details

SKU:: awhd-us-b09sz33j9h
Model:: USB TO 4CH TTL
Country:: US
ASIN:: B09SZ33J9H

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Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $3 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.