I bought a Kensington two SD5760T USB hubs from Amazon with 3 year manufacturer warranty. After about 6 weeks of use, one hub had two 5gbps USB ports failing frequently. I contacted Kensington Support. They accepted my troubleshooting diagnosis -- defective hub. I received a replacement in the mail about 2 weeks later. I feel that the premium support provided by Kensington was worth the premium price.
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