Laptop Riser * Notebook Expansion Base - $20 (Martinsburg WV)
make / manufacturer: HP
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I don't know if any of the functions work. I just used it as a laptop riser and used a cordless keyboard on the table in front of it. Compatible with older HP and Compaq Laptops.
Manual here: http://h10032.www1.hp.com/ctg/Manual/c00248746.pdf
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