The old versions are great for field work, but the new ones simply can't hold onto the USB cable well enough to keep a good connection.

Overall Review: Don't buy this adapter if you plan to use it anywhere but on a desktop. The quick fix is to either glue the USB cable into the port or use tape or a heavy rubber band to retain the cable. I replaced my USB port with an FCI port (PN 61729-1011BLF - about 54 cents). I tested 3 of the new Tripp-Lite adapters and all performed equally bad. coiled-up serial cable, the new Keyspans cannot. Whereas the old Keyspans would easily support the weight of the adapter + a 10 ft. The weaker spring conductors allow the cable to be pulled most of the way out of the socket very easily, resulting in a lost connection and possibly a BSOD (blue screen of death). Unfortunately, the cheaper USB socket doesn't retain the cable connector as well as the older ones did. The only notable difference is a lack of molded numbers (1, 2, 3 and 4) on the end of the plastic tab in the middle of the port. From the outside, it looks almost the same. I keep one in my laptop bag at all times.Ĭons: Tripp-Lite has made a few changes since they took over the Keyspan line. The Keyspan adapter comes with a driver CD and a USB cable and takes just a few minutes to set up. The Keyspan is extremely configurable, fast, reliable, durable and easy to use. Since I first started using the Keyspan adapter, I've bought over a dozen more for service techs, co-workers and even a couple of bosses. It works with every type of serial cable adapter I've thrown at it. I've used it with laptops and desktops running Windows 98 through Windows 7.

Rockwell Automation sells their own version of a USB serial port adapter (PN 9300-USBS), but it's about $130. The first one was purchased after reading recommendations from several control system experts, and I haven't been disappointed. Pros: I've been using the Keyspan USA-19HS for years. Works with Windows (up to 10) and Mac OS (up to 10.11)Īdditional Information Date First Available Supports data transfer speeds up to 230 Kbps USA-19HS Keyspan High-Speed USB-to-Serial AdapterĬD with driver software and Owner's ManualĬonnects 9-pin serial device to computer or laptop USB-A port Learn more about the Tripp Lite USA-19HS Best Seller RankingĬompatible with Windows 2000, XP, Vista, 7, 8, 8.1, 10, Server 2008 R2, Server 2012, Server 2012 R2Ĭompatible with Mac OS X 10.6, 10.7, 10.8, 10.9, 10.10, 10.11Ĭertifications: Tested to comply with RoHS, REACH, CE, FCC

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