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What does this indicator mean? I couldn't find anything about it in the user manual (ThinkPad L420) : r/thinkpad
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Lenovo ThinkPad T430 Laptop Computer, 2.60 GHz Intel i5 Dual Core Gen 3, 8GB DDR3 RAM, 128GB SSD Hard Drive, Windows 10 Home 64 Bit, 14" Widescreen Screen - Walmart.com
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