JandR.com has a Kensington Universal Laptop Power Supply for $29.99 plus Shipping.
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- Kensington’s all-in-one AC/DC adapter powers any laptop, anywhere. Laptop Compatibility Guaranteed. Features fully-retractable cord for maximum portability. Safety controls for surge and short circuit protection. Universal AC/DC laptop power adapter with multiple interchangeable tips. Retractable cord cartridge.