USB to 4Ch Serial RS485 Converter

Marsoni

M251S

$49.00

Get it in 3 business days with 1 day shipping. Friday, May 29

USB to 4Ch Serial RS485 ConverterUSB to 4Ch Serial RS485 Converter Features: Extending USB to 4CH RS485, allows concurrent and independent communication for each channel Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti electrostatic Onboard resettable fuse and protection diodes, ensures the current voltage stable outputs, provides over current over voltage proof, improves shock proof

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Your USB to 4Ch Serial RS485 Converter orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Our puppy loves this ball. It has held up well so far, it’s about 2 weeks now of large breed pup play. It’s been outside for the last week, rain or shine, still in working order. Not as big as I thought it would be though. No squeak, bounces well. Thick rubber like material, that can be depressed when biting down.

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Reviewed in the United States on May 14, 2026

Verified Purchase

AnaC

Phoenix, US

★★★★★ 5

Great Quality and durability

Color: Ultra, Size: Large

I have a teething puppy and this is the only ball that has outlasted the rest!! Big chewer and still bounces and no tears! Keeps him entertained for hours!! Sturdy, solid, good quality and value!

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Reviewed in the United States on February 12, 2026

Verified Purchase

Dana Kurtz

Lowell, US

★★★★★ 5

Durable, even for a Great Dane!

Color: Ultra, Size: XXL

I've bought many tennis ball sized ChuckIt balls in the past (for medium sized dogs we've owned), so when we knew we were going to be babysitting our daughter's Great Dane, I bought a bigger one for her. The 4" is perfect for her! She plays catch with it, but also likes to gnaw on it. It holds up great!

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Reviewed in the United States on April 19, 2026