It seems like you're looking for a numeric keypad that is wireless and connects via USB 2.0. Here’s a general overview of what you can expect when searching for such a device:

Key Features of a Wireless Numeric Keypad USB 2.0:

1. Wireless Connectivity: Typically connects through Bluetooth or a USB receiver that plugs into your computer’s USB 2.0 port.
2. USB 2.0 Compatibility: Ensures compatibility with most desktops and laptops via a USB port (even though USB 3.0 is more common now, USB 2.0 will still work fine).
3. Compact Design: A numeric keypad is a smaller and more portable device compared to a full keyboard, designed specifically for entering numbers and simple functions.
4. Battery-Powered: Most wireless keypads are battery-operated (either AA or built-in rechargeable batteries).
5. Ergonomic Design: Some models come with an ergonomic layout for a more comfortable typing experience.