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Two straight SMA male WiFi antennas, black finish, dual band 2.4 5.8 GHz, 3 dBi gain, 68 g pair

Vszerda

Vszerda BFN00621 Dual Band WiFi Antenna 3dBi SMA Male 2-Pack

SKU CH-XD38-3WD3B

Dual-band 2.4 and 5.8 GHz WiFi antenna pair with SMA Male connectors and 3 dBi gain for cameras, routers and IoT gear

  • Product typeSMA Male Wifi Antenna
  • Product color(SMA Male) Antenna 2-Pack
  • DetailsSMA Male Wifi Antenna
  • Key featuresSMA Male Wifi Antenna
  • Dual-band 2.4 GHz and 5.8 GHz coverage extends wireless range
  • 3 dBi gain improves signal strength for cameras and routers
  • SMA male connector fits SMA female ports on security and FPV gear
  • Omni-directional pattern receives signals from any angle without aiming
  • Two antennas in pack provide spare or dual-antenna upgrade

Dual-Band 2.4 GHz and 5.8 GHz Antennas

This two-pack supplies a pair of SMA male antennas tuned for 2.4 GHz and 5.8 GHz WiFi bands. They suit security cameras, surveillance recorders, vehicle backup monitors, industrial routers and FPV drone equipment. The omni-directional pattern provides 3 dBi gain with linear vertical polarisation across both frequency ranges.

SMA Male Connector and 50 Ohm Impedance

Each antenna terminates in an SMA male plug with a centre pin and internal threads, mating only with SMA female sockets. The 50 ohm impedance matches standard WiFi and Bluetooth adapters, allowing the same units to serve as 2.4 GHz Bluetooth antennas for audio systems or wireless extenders without extra adapters.

Operating Limits From -20 °C to 80 °C

Rated for continuous use between minus 20 °C and plus 80 °C, with storage tolerance down to minus 30 °C and up to 85 °C. The 3 dBi gain and fixed omni-directional pattern limit range improvement compared with higher-gain directional models, and the SMA male interface excludes RP-SMA or other connector types.

How it compares

Measured against everything we stock in Wi-Fi Antennas & Wireless Bridges, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 90% of the 399 comparable items (median $31.99).

Specifications

Product
Brand nameVszerda
Model nameBFN00621
Part numberBFN00621
Product typeSMA Male Wifi Antenna
Product color(SMA Male) Antenna 2-Pack

Questions about this item

Will the SMA Male connector threads wear out and need replacement?

The SMA Male connector has threads inside with a centre pin; mate it only with an SMA Female jack (threads outside, no pin) to avoid cross-threading and premature wear.

What is the first limit reached during continuous transmission at 5.8 GHz?

The antenna is rated for 50 ohm impedance and linear vertical polarisation; sustained high-power operation will hit the 50 ohm match limit before thermal limits at +80 °C.

How much heat does the antenna add when mounted on a router running all day?

The passive dipole adds no active heat; it simply operates within the -20 °C to +80 °C ambient range, so the host device's own thermal load dominates.

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