i saw one on holiday in London in harrods
Some stores that sell flash drives for cheap include Amazon and Canada Computers. Both companies offer a wide selection of flash USB drives from a variety of companies.
A USB fan can be brought from many different technical stores such as Currys and PC World. It is a good idea to check places and shops that sell computers and computer accessories.
One can buy a USB wireless modem at most stores that sell computers and accessories, like Best Buy. They can also be purchased online at websites like Amazon.
Plug it into a USB socket. If you want to charge it in the car, Scan Computers sell adapters so you can plug a USB stick into a car.
Amazon sells quality USB WiFi adapters at an affordable price. Other companies that sell USB WiFi adapters are: eBay, aliexpress and other computer stores.
A USB to Ethernet Adapter is a great device for a person who is looking to use a wired internet connection instead of Wi-Fi. Stores that sell a USB to Ethernet Adapter are Best Buy, Tiger Direct, Fry's Electronics, and Wal-Mart.
That depends on what kind of USB device. Considering the categorization of the question, we may assume you are primarily interested in USB flash drives - although there are also USB mice, keyboards, printers, external hard drives, cameras... and the list goes on. Most computer stores sell flash drives, as do most business supply stores. USB flash drives have become so ubiquitous however that you can even find them in some drug stores and grocery stores. There are also many, many internet businesses that sell USB devices.
There are several places where someone could purchase a USB to parallel port adapter. Stores such as Office Depot and Staples both sell the USB to parallel port adapters.
All the Macintosh range of computers have USB 2 ports.
Some online retailers that sell 16 GB USB drives are Best Buy, Walmart, Radio Shack, Amazon, Apple. Also at Target, Staples, and Office Depot. Many stores have these USB drives.
Bluetooth USB adapters can be bought from many retailers and online stores. Some examples of stores that sell this product includes Amazon, New Egg, and Walmart.
A USB PCI card can be purchased from many different stores and retailers. Some examples that sell USB PCI cards include Dell, Newegg, CDW, and Walmart.