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. TL-WN781N provides WPA/WPA2 encryptions that are created by the WI-FI Alliance industry group, preventing the wireless network from outside threats.

Quick Setup Security
Compatible with WI-FI Protected Setup™ (WPS), TL-WN781N features Quick Security Setup (QSS) function, which is ideal for creating a WPA encrypted connection to prevent outside intrusion, and meanwhile maximize the management resources. Not only is this faster than normal security setups but more convenient in that you don’t need to remember a password!

Detachable Antenna
TL-WN781N offers external antenna that can be rotated and adjusted in different directions to fit various operation environments, and can bring better performance than the internal antenna. For even more demanding applications, the antenna can be replaced with diverse antennas to show even greater flexibility and wider wireless coverage.

Features
- Adopts AlignTM technology, with transmit speed up to 150Mbps;
- Provides PCI Express connector having a wider compatibility with any standard PCI Express slot;
- Supports QSS function, complying with WPS for worry free wireless security;
- Supports 64/128/152-bit WEP, WPA /WPA2/WPA-PSK/WPA2-PSK(TKIP/AES), supports IEEE 802.1X;
- Supports roaming technology, guaranteeing uninterrupted wireless connection;
- Supports Ad-Hoc/Infrastructure modes;
- Seamlessly compatible with 802.11n/b/g devices;
- Supports Windows 2000, Windows XP 32/64bit, Vista 32/64bit.

TP-Link TL-WN781ND. Internal. Connectivity technology: Wireless, Host interface: PCI Express, Interface: WLAN. Maximum data transfer rate: 150 Mbit/s, Wi-Fi band: Single-band (2.4 GHz). Product color: Green

Connectivity technology	Wireless
Host interface	PCI Express
Interface	WLAN
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
Internal	Yes
Product color	Green
Antenna	Yes
Antenna design	External
Antenna direction type	Omni-directional
Antenna gain level (max)	2 dBi
Chipset	Atheros
Operating modes	Infrastructure mode
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, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows Vista, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows Vista x64, Windows XP, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Linux operating systems supported	Yes
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%
Width	4.76" (120.8 mm)
Depth	3.09" (78.5 mm)
Height	0.846" (21.5 mm)
Package width	7.87" (200 mm)
Package depth	5.91" (150 mm)
Package height	1.54" (39 mm)
Package weight	5.29 oz (150 g)
Resource CD	Yes
Quick installation guide	Yes
Compliance certificates	RoHS, Federal Communications Commission (FCC), CE
Harmonized System (HS) code	85176990
Sustainability compliance	Yes