Design
Product colour	Green
Antenna design	External
Antenna direction type	Omni-directional
Antenna gain level (max)	2 dBi
Chipset	Atheros
Operating modes	Infrastructure mode
Internal
Antenna
Logistics data
Harmonized System (HS) code	85176990
Network
Maximum data transfer rate	150 Mbit/s
Networking standards	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
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
Wi-Fi
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%
Packaging content
Resource CD
Quick installation guide
Packaging data
Package width	200 mm
Package depth	150 mm
Package height	39 mm
Package weight	150 g
Ports & interfaces
Connectivity technology	Wireless
Host interface	PCI Express
Interface	WLAN
Sustainability
Sustainability compliance
System requirements
Windows operating systems supported	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64,
Linux operating systems supported
Technical details
Compliance certificates	RoHS, Federal Communications Commission (FCC), CE
Weight & dimensions
Width	120.8 mm
Depth	78.5 mm
Height	21.5 mm

TP-LINK's TL-WN781ND is designed to provide complete end-to-end Wi-Fi performance, from the server or server backbone to the switch infrastructure and down to the desktop with the PCI Express Connection. The TL-WN781ND WiFi PCI Express (x1) adapter offers greater compatibility and fits into any standard PCI Express slot, x1, x2, x8 or x16. Compared to standard PCI network cards, it offers more bandwidth, more reliability and more functionality, so you can enjoy a fast connection for downloads, Internet calls and video streaming.

Highlights

• Wi-Fi data rates of up to 150 Mbps
• PCI Express interface
• Advanced secure connection with WPA/WPA2 encryption
• Included utility allows for easy management
• External, detachable antenna for even greater range and easy antenna upgrades
• The WPA/WPA2 encryption standard protects WLAN from unwanted access

Product type

• network component
• ear category (ElektroG): relevant, category 5: small devices < 50 cm (all sides), small devices B2C

Basic properties

• Color: Green
• Height: 120.8 mm
• Length/Depth: 21.5 mm
• Width: 78.5 mm

Box contents

• TP-Link TL-WN781ND 150Mbps WLAN N PCI Express adapter
• Detachable omnidirectional antenna
• Resource CD
• Quick installation guide