🧰 What is it?
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NI USB‑6501 (PN 779205‑01)
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24-channel digital I/O device powered directly via USB
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Includes a 32-bit counter and overvoltage protection on I/O lines
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Voltage range: 0 – 5 V, operating temperature 0 °C to 55 °C
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Key Features
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Bus-powered & plug-and-play: No external power supply needed
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Durability: Built for both academic and industrial use
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Compact form factor: NI also provides dimensional drawings and CAD models


