To download and install the Kinamax TS-9900 wireless adapter driver for Windows 7, you should use the Ralink RT3070

Report: Kinamax TS-9900 Driver Status for Windows 7

Subject: Driver Availability and Installation Guide for Kinamax TS-9900 (USB 2.0 Video Grabber) on Windows 7.

The Kinamax TS-9900 High Power Wireless-Sense USB Adapter is a high-gain Wi-Fi receiver known for its long-range capabilities, utilizing the Ralink 3070 chipset. To ensure peak performance on Windows 7, installing the correct Ralink (now MediaTek) driver is essential. Driver Specifications & Features Chipset: Ralink 3070. Wireless Standards: IEEE 802.11b/g/n. Max Speed: Up to 150 Mbps. Power Output: 5800mW with a 58dBi antenna.

Since official Kinamax support sites can be hard to find, your best bet is downloading the generic chipset drivers directly from reliable sources: MediaTek (formerly Ralink):

Direct Chipset Driver: Since Kinamax often doesn't host a central driver site, you can download the Ralink RT3070