The network card TP-Link TL-WN781ND is an internal wireless adapter designed to provide a stable and efficient Wi‑Fi connection in desktop PCs with a PCI Express slot, ideal for upgrading computers without built‑in wireless connectivity or improving the existing one. It operates on the 2.4 GHz band with speeds of up to 150 Mbps (150 Mbit/s), sufficient for web browsing, standard‑quality streaming and office or home work environments with multiple connected devices. Its external detachable antenna allows you to adjust the orientation to optimize signal reception and, if necessary, replace it with another compatible higher‑gain antenna to improve range in more demanding installations. The card complies with major international standards and certifications such as RoHS, CE and FCC, ensuring reliability and compatibility with most home and professional wireless networks. It is compatible with a wide range of operating systems, including Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 and Linux, making it easy to integrate into different PC configurations without specific hardware. Its compact dimensions of approximately 7.85 x 12.08 x 2.15 cm allow easy installation in most standard towers, even in systems with limited internal space. The white and green design, with a matte printed circuit board finish, blends discreetly inside the case, while the included installation guide helps you complete mounting and setup quickly by following clear steps. Its wide operating and storage temperature range, from -40º to 70º and with relative humidity between 10% and 90%, provides robustness under typical environmental conditions in homes and offices. Overall, the TP-Link TL-WN781ND is a practical and reliable solution to equip a desktop PC with basic Wi‑Fi wireless connectivity, with simple installation and broad system compatibility.

• Type:
  • Wireless network
  • Network Card
  • Antenna
  • PCI Express 3.0
• Certificate:
  • CE
  • FCC
• Speed: 150 Mbps
• Approx. dimensions: 7,85 x 12,08 x 2,15 cm
• Characteristics:
  • Matte finish
  • Wireless
  • Installation guide included
• Connectivity: Wi-Fi
• Colour:
  • White
  • Green
• Material: Paper
• Compatible: Linux
• Increase: 2x
• Working range for humidity: 10 % - 90 %
• Approx. temperature: -40º / 70º
• Data transfer: 150 Mbit/s
• Connections: PCI Express
• Sheets: 500 Sheets

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.

• Connectivity technology: Wireless
• Host interface: PCI Express
• Interface: WLAN
• Maximum data transfer rate: 150 Mbit/s
• Wi-Fi: Y
• Wi-Fi band: Single-band (2.4 GHz)
• Frequency range: 2.4 - 2.4835 GHz
• Security algorithms: 128-bit WEP,64-bit WEP,WPA-PSK,WPA2-PSK
• Internal: Y
• Product colour: Green
• Chipset: Atheros
• Certification: CE, FCC
• Compatible operating systems: Win 98SE,ME,2000,XP 32 bit/64 bit, Vista 32 bit/64 bit, 7 32 bit/64 bit
• 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%
• Gain: 2 dBi
• Compliance industry standards: IEEE 802.11b/g/n
• Dimensions (WxDxH): 78.5 x 120.8 x 21.5 mm
• Link/Act LED: Y

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