Antenne Wifi USB Adapter Wifi Dongle Empfänger

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Guangdong, China
Produkt name:
Antenne Wifi USB Adapter Wifi Dongle Empfänger
Großen Chipsatz:
IEEE 802,11 b/g/n
Frequenz Bereich:
2,4 GHz ~ 2,4835 GHz
Dimension (L * W):
136,00mm X 16,00mm X 7,50mm
DC 5 V (± 2 V)
2dBi Antenne
RF Ketten:
2,4G: 1T1R
Host Interface:

Verpackung & Versand

20X13X7 cm
0.5 kg
Antenna Wifi USB Adapter Wifi Dongle Receiver: Standard packaging
Lieferzeit: :
Menge(Stück) 1 - 1000 1001 - 5000 5001 - 10000 >10000
Voraussichtl. Dauer (Tage) 16 25 30 Zu verhandeln

Antenna Wifi USB Adapter Wifi Dongle Receiver

Product Details

• What is KWH-WB821N Wifi Dongle / Wifi Adapter?

KWH-WB821N is a highly integrated single-chip 802.11n Wireless LAN (WLAN) USB 2.0 Multi-Function network interface controller with integrated Bluetooth 2.1/3.0/4.0 controller.

It combines a WLAN MAC, a 1T1R capable WLAN baseband, and RF in s single chip.

The KWH-WB821N provides a complete solution for a high-performance integrated wireless and Bluetooth device. The integration provides better coordination between 802.11 and Bluetooth, and with sophisticated dynamic power control and packet traffic arbitration, KWH-WB821N is able to provide the best coexistence performance Overview.

• What is the features of KWH-WB821N Wifi Dongle / Wifi Adapter?

   Main Features:
  • Highly integrated single-chip 802.11n Wireless LAN (WLAN) USB 2.0 Multi-Function network interface controller with integrated Bluetooth 2.1/3.0/4.0 controller;
  • Provides a complete solution for a high-performance integrated wireless and Bluetooth device;
  • The integration provides better coordination between 802.11 and Bluetooth, and with sophisticated dynamic power control and packet traffic arbitration;
  • Complied with 2.4GHz 1T1R IEEE802.11 b/g/n Standard;
  • 40MHz bandwidth transmission;
  • OS support of WIN2000/XP/VISTA/WIN7/WIN8/Linux;
  • Applying for Networking camera, STB, GPS, Desk-Top Pc ;Note-book ;TV; Blue-ray Disk; Set-top box, Hard disk player, Network Radios, PSP and other device which need be supported by wireless networking;
  • Accorded with FCC CE.
• What is the product parameter of KWH-WB821N Wifi Dongle / Wifi Adapter?

Main chipset Realtek RTL8723BU
Interface USB2.0
Antenna External antenna,2dBi 
Size 136.00mm X 16.00mm X 7.50mm
Transmission distance WiFi: Indoor 100M, Outdoor 300M, according the local environment
 BT: 10m MAX.
Working frequency 2.4GHz~2.4835GHz
Transmitting power

 802.11b (CCK) 11Mbps: 16±2dBm

 802.11g (OFDM) 54Mbps: 14±2dBm

 802.11n (OFDM) 64Mbps: 13±2dBm
 BT: MAX +10dBm
Receiving sensitivity

 802.11b(1Mbps): -92±1dBm;                 802.11b(11Mbps): -85±1dBm; 

 802.11g(6Mbps): -86±1dBm;                 802.11g(54Mbps): -71±1dBm;

 802.11n (HT20 MCS0): -84±1dBm;       802.11n (HT20 MCS7): -66±1dBm;
 802.11n (HT40 MCS0): -85±1dBm;       802.11n (HT40 MCS7): -66±1dBm;
Wireless transmission rate

 Wifi:802.11b: 11, 5.5, 2, 1 Mbps
          802.11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps
          802.11n: MCS 0 to 7 for HT20MHz ;MCS 0 to 7 for HT40MHz
 BT: 1 Mbps for Basic Rate
        2,3 Mbps for Enhanced Data Rate

Spread Spectrum

 IEEE 802.11b: DSSS (Direct Sequence Spread Spectrum)
 IEEE 802.11g/n:OFDM (Orthogonal Frequency Division Multiplexing)
 BT: FHSS(Frequency-Hopping Spread Spectrum)

Sensitivity @PER

 WiFi: 802.11b, 1M: -92dBm@8%PER
          802.11g, 6M: -86dBm@10%PER
          802.11b, 11M:-85dBm@8%PER
          802.11g,  54M:-71dBm@10%PER
          802.11n, MCS0 HT20:-84dBm@10%PER

          802.11n, MCS7 HT20:-66dBm@10%PER

          802.11n, MCS0 HT40:-85dBm@10%PER

          802.11n, MCS7 HT40:-66dBm@10%PER

 B T: -89dBm@1Mbps, -85dBm@2Mbps, -83dBm@3Mbps

RF Power

 WiFi: 16dBm@11b, 14dBm@11g ,13dBm@11n
 BT: MAX +10dBm

 WiFi: IEEE 802.11 b/g/n
 BT: V2.1+EDR/BT v3.0/BT v3.0+HS/BT v4.0
Working Mode

 Infrastructure, Ad-Hoc

Clock source



 5V DC±0.3V DC / <205mA (MAX)

Power dissipation

 Standby mode 86mA@ 5V
 TX mode 205mA@ 5V

Operation system

 Win XP/Vista/7/8/2000, Linux2.6X

Wireless security support


Working Temperature 0°C to +50°C
Storage temperature -40°C to +85°C
• Product Details
• With external rotatable antenna• With Perfect individually packaged
• Product Application
• Factory Workshop
• Company Information
    Formike Group was founded in 1999, which engaged in R&D, design, manufacture and sales of LCD display and accessories parts as well as Wifi module and Wifi Dongle. All our operations are under ISO 9001:2000 and ISO 14000 standards.
The company has a professional customer service team to answer questions for customers.With the help of our 50-people strong R&D team, we can also realize your ODM ideas into a real item within 20 days.

We source our key materials and components from Japan and Germany, where over 10 suppliers have been working with us for over five years. Our 100 QC members conduct strict inspections during the entire production process to ensure our quality meets your requirements. According to the ISO quality inspection system to monitor the quality, the IQC sampling pass rate of the client is above 98%.


We have 100 CNC machines, 12 polarizer attach machines, 10 2D measuring projectors complete equipment, eight ultrasonic cleaners, six liquid crystal machines, two fully automatic bonding machines, etching machines, fully automatic sticking film machines, cutting machines, UV machines and more apply in our process to ensure that our quality and capacity can always support customers' demand.

• Exhibition
• Certificate

1.Q: Order process
A:PO is placed by clients → PI is issued by Formike → Payment by clients → Lead time is 
confirmed by Formike → Shipping instrction by Clients → Delivery → Cargo tracking → 
Receipt of cargo

2.Q: Lead time ( after payment is confirmed)
A: Sample: 1-10 working days
Volume: 3-60 working days

3.Q: Payment
A: T/T , Western union, L/C, Credit card, and Cash

4.Q: Warranty
A: 12 months warranty ( Please find more details via our datasheet by item of Limited Warranty)

5.Q:RMA Process
A:Claimed by cliens with photos or videos → Sales rep of Formike confirm if have questions 
→ Sales rep issue RMA No to clients if confirmed by QA → Return to Formike → Formal 
report after goods received by Formike → Clients confim the analysis report → Proceeding
as per the Report both agreed

A:Please check both appearance and function of products prior to installation.
Any damage caused by improper use or unprofessional installation is not covered under warranty.

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