Carte réseau Edimax EW-7811DAC

The Edimax EW-7811DAC is a compact USB wireless network card that upgrades computers to dual-band 802.11ac (Wi‑Fi 5) connectivity. Supporting maximum aggregated data rates up to 600 Mbit/s and compatible with 2.4 GHz and 5 GHz bands, the adapter adds high-speed wireless capability to PCs and notebooks via a USB interface. The device includes a directional high-gain antenna (5 dBi @2.4 GHz, 7 dBi @5 GHz) and a USB cradle with an adjustable antenna and 1.2 m cable for flexible placement.

Advantages

The EW-7811DAC delivers faster wireless speeds on the 5 GHz band (up to 433 Mbps) while remaining compatible with 2.4 GHz networks (up to 150 Mbps). Its directional high-gain antenna improves signal range and link quality for 802.11a/b/g/n/ac networks. The included USB cradle with 180° adjustable antenna and a 1.2 m cable enables optimal antenna positioning to reduce interference and improve performance. The adapter supports a wide range of operating systems and provides a hardware WPS button for simplified secure connections.

Suitable for

• Upgrading desktop PCs and notebooks without built-in 802.11ac support
• Streaming HD video and online gaming on the interference‑free 5 GHz band
• Improving wireless range and connection stability in home and small office networks

Key specifications

• Standard: IEEE 802.11ac (backward compatible with 802.11a/b/g/n)
• Maximum data transfer rate: up to 600 Mbit/s (433 Mbps @5 GHz + 150 Mbps @2.4 GHz)
• Bands: 2.4 GHz and 5 GHz (dual-band)
• Antenna: directional high-gain antenna 5 dBi (2.4 GHz) / 7 dBi (5 GHz)
• Interface: USB (USB cradle included, 1.2 m cable)
• Security: WPS hardware button supported
• Compatibility: Windows XP/Vista/7/8/8.1, Linux, Mac OS X drivers
• Color: Black; Weight: 0.036 kg

How to use

Connect the EW-7811DAC to a free USB port directly or via the supplied USB cradle for better signal placement. Install the appropriate driver for your operating system using the included software or download the latest driver from the Edimax support site. Use the adjustable cradle to position the antenna for optimal reception. To join a network, select the SSID from your system's wireless manager and enter the network password, or press the WPS button on both the adapter and your router to establish a secure connection automatically.

Recommendations

Place the USB cradle at a clear line of sight from obstacles and away from sources of interference (microwaves, cordless phones). For high-bandwidth tasks such as HD streaming or gaming, prefer the 5 GHz band; use 2.4 GHz for greater range or legacy device compatibility.