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Wireless PCI Adapter (eXtended Range): TL-WN551G
Code: N2970
Withdrawn from the offer
Wireless Access Point: ULTIAIR 419KC
View of the card

Wireless Access Point: ULTIAIR 419KC
Resource CD-ROM included

Wireless Access Point: ULTIAIR 419KC
View of packaging

WLAN PCI card TP-Link TL-WN551G 54Mbps is compliant with 802.11g and 802.11b standards. Using RF technology, the card enables wireless connection of a computer to local network.
Main features:
  • IEEE 802.11g Wireless PCI Adapter.
  • 54Mbps, full compliance to 802.11b
  • eXtended Range technology, expanding range up to 9 times in comparison to typical devices
  • Seamless Roaming allows for smooth switching between APs
The distinctive feature of the TL-WN551G card is implementation of "eXtended Range" technology developed by TP-LINK company. EXtended Range allows for 2 - 3 times (802.11b) or even 4 - 9 times (802.11g) longer range of operation in comparison with similar regular cards, ensuring full compatibility with these standards.
The card supports additional protocols ensuring security of transmitted data like 64/128/152-bit WEP, WPA/WPA2, IEEE802.1X, TKIP and AES. Together with firewall it can guarantee high protection level for the transmission and computer.
Due to SMA R/P socket the card can cooperate with any suitable external antenna, which will allow to employ the card even in difficult conditions.
The installation procedure is quite simple, the user gets software pack for managing the WLAN card.


Wireless PCI Adapter TL-WN551G



Wireless chipset


Antenna connector



IEEE 802.11b. IEEE 802.11g

Transmission speed


11 Mb/s; 5.5 Mb/s; 2 Mb/s; 1 Mb/s


54 Mb/s; 48 Mb/s; 36 Mb/s; 24 Mb/s; 18 Mb/s;
12 Mb/s; 9 Mb/s; 6 Mb/s


11g: Orthogonal Frequency Division Multiplexing (OFDM)
54 Mb/s; 48 Mb/s – QAM-64
36 Mb/s; 24 Mb/s – QAM-16
18 Mb/s; 12 Mb/s – QPSK
9 Mb/s; 6 Mb/s – BPSK
11b: Direct Sequence Spread Spectrum (DSSS)
11 Mb/s; 5.5 Mb/s – CCk
2 Mb/s – DQPSK
1 Mb/s – DBPSK

Frequency range

2412 MHz – 2462 MHz (USA)
2412 MHz – 2472 MHz (Europe)
2412 MHz – 2484 MHz (Japan)


11 (USA. Canada)
13 (Europe)
14 (Japan)

Tx output power


Rx sensitivity

-68 dBm at 54 Mpbs
-72 dBm at 48 Mpbs
-75 dBm at 36 Mpbs
-79 dBm at 24 Mpbs
-82 dBm at 18 Mpbs
-84 dBm at 12 Mpbs
-87 dBm at 9 Mpbs
-88 dBm at 6 Mbps


-85 dBm at 11 Mpbs
-85 dBm at 5.5 Mpbs
-86 dBm at 2 Mpbs
-89 dBm at 1 Mpbs


WPA/WPA2; 64/128/152 BIT WEP; TKIP/AES


PCI v.2.2 32 bits


133 × 121 × 22 mm

Supplying voltage

3.3 V +/- 5%

Current consumption

max. 685 mA (TX mode)
max. 515 mA (RX mode)


Working temperature: 0 to +40 °C
Storage temperature: -40 to +70 °C
Working humidity: up to 90% (no condensation)
Storage humidity: up to 95% (no condensation)


PCI card TL-WN551G, antenna, installation instructions, CD

Withdrawn from the offer
Wireless PCI Adapter (eXtended Range): TL-WN551G
Code: N2970