TP-Link · Wi-Fi Adapter

TP-Link TL-WN781ND(EU) Wireless Adapter

Wi-Fi · Wi-Fi 4 · PCIe · 150 Mbit/s

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Type Wi-Fi
Standard Wi-Fi 4
interface PCIe
maxSpeed 150 Mbit/s

TP-Link TL-WN781ND(EU) Wireless Adapter adds Wi-Fi (Wi-Fi 4) to a PC through a PCIe slot. It came out in 2025.

Released: 2025-03-15

Specifications

Key specs

Type: Wi-Fi
Standard: Wi-Fi 4
interface: PCIe
maxSpeed: 150 Mbit/s
Released: 2025-03-15
Part number: TL-WN781ND(EU)

Ports & interfaces

Connectivity technology: Wireless
Host interface: PCI Express
Interface: WLAN

Network

Maximum data transfer rate: 150 Mbit/s
Networking standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Wi-Fi: Yes
Wi-Fi band: Single-band (2.4 GHz)
Frequency range: 2.4 - 2.4835 GHz
Wi-Fi standards: 802.11b, 802.11g
WLAN data transfer rates supported: 11,54,150 Mbit/s
Modulation: 16-QAM, 64-QAM, CCK, DBPSK, DQPSK, OFDM
Security algorithms: 128-bit WEP, 64-bit WEP, WPA-PSK, WPA2-PSK

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Design

Product colour: Green
Internal: Yes
Antenna: Yes
Antenna design: External
Antenna direction type: Omni-directional
Antenna gain level (max): 2 dBi
Operating modes: Infrastructure mode

System requirements

Linux operating systems supported: Yes

Operational conditions

Operating temperature (T-T): 0 - 40 °C
Storage temperature (T-T): -40 - 70 °C
Operating relative humidity (H-H): 10 - 90%
Storage relative humidity (H-H): 5 - 90%

Weight & dimensions

Width: 120.8 mm
Depth: 78.5 mm
Height: 21.5 mm

Technical details

Compliance certificates: RoHS, Federal Communications Commission (FCC), CE

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About this product

WHAT THIS PRODUCT DOES

TP-LINK TL-WN781N is designed to provide a complete end-to-end wireless performance from the server or server backbone to the switch infrastructure and down through to the desktop with the PCI Express connector. TL-WN781N Wireless Lite N PCI Express(x1) Adapter provides a wider compatibility, fitting with any standard PCI Express slot, x1, x2, x8, or x16. Compared with standard PCI network cards, it offers increased bandwidth, reliability and more functionality, allowing you to enjoy a fast and advanced connection, such as downloading, making internet call and video streaming. Wireless N ---- Speed & Range Complying with the IEEE 802.11n standard, TL-WN781N can easily establish a wireless network and get up to 9X the speed and 4X the range of conventional 11g products. Compared with legacy 54M products, TL-WN781N delivers performance enhancements, allowing you to have a more joyful surfing experience, including sharing files, watching streaming media. WPA / WPA2 Encryptions ---- Advanced Security As for the security of WI-FI connection, WEP encryption has been no longer the strongest and safest guards for outside intrusions.