Lenovo ThinkPad T420si User Manual page 175

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. Serial Ultrabay Slim
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Lenovo
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. Serial Ultrabay
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. MultiMediaCard
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90
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9.5 Serial Ultrabay Slim
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SDXC Card SDHC Card
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SD Flash Media
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DVD CD
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Mini-PCI
ExpressCard
CompactFlash
SD Card
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