The original antenna is cracked due to a child's mischief, but I was still able to connect to WiFi without any problems in my environment. I'm selling this because I bought a new computer at the beginning of this year and no longer need it. I found another antenna from a different manufacturer that I wasn't using, so I'll include it as a bonus. I was able to connect it to the device without any issues, so I think it should work. The following product description is an excerpt: WiFi 5 PCI-E Wireless LAN Adapter Network Card (AC1200 Dual Band 2.4G/5GHz 802.11AC, for Desktop, Windows 7/8/10/11). [Product Description] Model: Intel WiFi 5 Chipset Stable Connection: The 11AC Dual Band PCI-E Wireless Adapter has a built-in Intel 7265. You can enjoy a more stable connection from anywhere in your home or office. REALTEK Original Chip: Uses a REALTEK high-performance main control chip, ensuring stability and compatibility. PCI Express x1: Supports PCI Express x1 bus high-speed interface AC-1200 PCI Express x1, x4, x8, and x16 slot usage. High-Speed Dual-Band Intelligent Connection: Supports the new generation wireless protocol 802.11ac and dual-band transmission. Simultaneous dual-band provides sufficient bandwidth for all applications and adapts to AC routers. Use 5GHz for games and high-definition applications with low latency, and browse the web smoothly on 2.4GHz. [Specifications Size]: 12cm x 7cm (excluding antenna) [Protocol Band]: IEEE802.11 b/g/n/ac Draft 2.0 [Transmission Speed]: 2.4GHz-400M 5.8GHz-867M [Supported Systems]: win7, win8.1, win10, win11