Product Warranty Period (Worldwide) 3-YEAR LIMITED WARRANTY Tripp Lite warrants this product, if used in accordance with all applicable instructions, to be free from original defects in material and workmanship for 3 years from the date of initial purchase. If the product should prove defective in material or workmanship within that period, Tripp Lite will, subject to the foregoing terms and limitations, repair or replace the product, in its sole discretion, as your exclusive remedy for Tripp Lite's breach of its limited warranty.
![Windows Windows](http://farm8.staticflickr.com/7110/7050076187_2c6408579f_d.jpg)
Tripp Lite uses primary and tripp lite usa-19hs windows 7 driver agencies to test its products for compliance with standards. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information. 64 bit driver for KeySpan (Tripp Lite) USA-49WLC. I believe this is the same hardware as the USA-49WG. I'm using Win7x64. I have not been able to find a Driver for Windows 7 for the Keyspan USB adaptor model USA-49wlc. So you will probably need to get a replacement (Keyspan usa-19hs has Vista support, that one works for me).
Keyspan Usa-19hs Drivers
![19hs 19hs](https://static.bhphoto.com/images/fb/382968.jpg)
Tripp Lite's Return Policy Proof of Warranty Coverage You must provide proof that the product is covered under warranty. This can be confirmed by the product's serial number or with proof of purchase in the form of an invoice or receipt from a Tripp Lite authorized dealer.
If required, please include the proof of purchase invoice with your return. Warranties on Tripp Lite products begin on the date of your product purchase. Warranty coverage varies by product line. Specific warranty duration is outlined in the owner's manual that accompanies each unit.