# StarTech.com PCI Express Wireless N Adapter - 300 Mbps PCIe 802.11 b/g/n Network Adapter Card, 2T2R 2.2 dBi - PCIe Wireless Desktop Card (PEX300WN2X2)

- Category: Wireless Network Adapter
- Brand: TP-Link
- Model: Wireless N300
- Part number: TL-WN821N
- Price (US): currently unavailable
- Price last checked: 2026-08-05
- Rating: 3.9/5 from 1014 Amazon reviews
- Warranty: 2 years
- Product page: https://buildmypc.net/component-details/wireless-network-adapter/tp-link-wireless-n300-tl-wn821n/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | TP-Link |
| Model | Wireless N300 |
| Protocol | WiFi 4 - 802.11a/b/g/n |
| Interface | USB 2.0 |
| Color | White |

## Key Features

- PCI Express Wireless N Adapter - 300 Mbps PCIe 802.11 b/g/n Network Adapter Card - 2T2R 2.2 dBi - PCIe Wireless Desktop Card
- Add high speed Wireless-N connectivity to a desktop PC through PCI Express
- Compatible with PCI-Express equipped computers such as HP Compaq Desktops
- PCIe Wireless Network Card / PCI Express Wireless NIC / Wireless PCIe card
- Supports Wireless 802.11 N / G (300 Mbps) for high speed wireless Internet applications such as online gaming and Video Streaming
- Upgrade your internal PCIe Wireless NIC

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