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Panorama Antennas LG-IN2445 5G 71 Dome Wi-Fi adapter
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SIIG, Inc
SIIG, Inc CN-WR0811-S2 PCIe Wi-Fi adapter 300 Mbps
A PCI Express Wi-Fi adapter adding 2.4 GHz wireless‑n connectivity to a desktop at up to 300 Mbps
- TypePCIE Wi-Fi Adapter
- InterfacePCI Express, 32-bit
- Frequency Band2.4 GHz - 2.483 GHz
- Channels11 for 802.11b, 802.11g, draft 802.11n (20MHz) 7 for draft 8
- FeaturesComplies with 2.4GHz IEEE 802.11 b/g/n standards 2x2 MIMO te
- Dimensions4.72" x 0.79" x 3.07"
- PCI Express interface fits standard desktop slots
- 2×2 MIMO on 2.4 GHz band improves reception
- Up to 300 Mbps with 40 MHz channel width
- Low-profile 4.72″ × 0.79″ card suits compact cases
- RoHS and WEEE certified for reduced environmental impact
Desktop PCI Express Wi-Fi adapter
The SIIG CN-WR0811-S2 is a new internal wireless adapter for desktop computers that use a 32-bit PCI Express slot. It operates on the 2.4 GHz band and supports IEEE 802.11 b/g/n standards with 2x2 MIMO technology. Maximum data rates reach 150 Mbps on 20 MHz channels and 300 Mbps on 40 MHz channels.
Simple installation with antenna clearance
The card inserts into an available PCI Express slot and includes external antennas that screw onto the bracket. The low-profile bracket measures 0.79 inches wide, so it fits slim cases, but the antennas need rear clearance to rotate. Driver installation follows the standard Windows path; no extra power connector is required.
Steady throughput on the 2.4 GHz band
Under sustained load the adapter maintains the 2x2 MIMO link at up to 300 Mbps when the router uses 40 MHz channels, dropping to 150 Mbps on 20 MHz channels. Performance is limited to the 2.4 GHz spectrum, so heavy neighbouring traffic can reduce real-world speed during long transfers.
Highlights
- PCI Express interface fits standard desktop slots
- 2×2 MIMO on 2.4 GHz band improves reception
- Up to 300 Mbps with 40 MHz channel width
- Low-profile 4.72″ × 0.79″ card suits compact cases
- RoHS and WEEE certified for reduced environmental impact
Specifications
| Brand | SIIG |
|---|---|
| Model | CN-WR0811-S2 |
| Type | PCIE Wi-Fi Adapter |
| Interface | PCI Express, 32-bit |
| Frequency Band | 2.4 GHz - 2.483 GHz |
| Channels | 11 for 802.11b, 802.11g, draft 802.11n (20MHz) 7 for draft 802.11n (40MHz) |
| Features | Complies with 2.4GHz IEEE 802.11 b/g/n standards 2x2 MIMO technology for dependable reception and exceptional throughput Maximum data rate up to 150Mbps using 20MHz bandwidth and 300Mbps using 40MHz bandwidth Backward compatible with 802.11a/b/g devices while operating at 802.11n data rates Installs in standard height or low profile chassis with included brackets |
| Dimensions | 4.72" x 0.79" x 3.07" |
| Weight | 0.12 lb. |
| Shipping weight | 0.18 kg |
| Package size | 203 × 127 × 32 mm |
Questions about this item
How do I confirm the CN-WR0811-S2 is delivering the 300 Mbps link speed after installation?
In Windows Device Manager check the adapter properties; the link speed should read 300 Mbps when connected on the 40 MHz channel.
What comes in the box with the CN-WR0811-S2 and what must I purchase separately?
The box contains the PCI Express 32-bit adapter and a low-profile bracket; you must supply your own 2.4 GHz antenna if not already fitted.
Should I choose the 20 MHz or 40 MHz channel setting for the CN-WR0811-S2?
Use the 40 MHz setting to reach the 300 Mbps maximum rate; select 20 MHz only if you need the 11-channel layout for compatibility.
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