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  • Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed
  • Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed
  • Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed
  • Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed
  • Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed
  • Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed
Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed

Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed

$13.00-$15.00/ Piece|100 Piece/Pieces(Min. Order)
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Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Wireless Internet Connectivity: Provides stable CDMA 3G internet via USB with up to 21Mbps speed, enabling seamless browsing, streaming, and data transfer.
  • Multi-Carrier Flexibility: Unlocked design supports compatibility with global CDMA networks, eliminating carrier restrictions for versatile deployment.
  • Enhanced Signal Performance: Features an external antenna for optimized reception in areas with weak or fluctuating network coverage.

Key features

  • 1. Material Technology

    • With an external antenna design, you can achieve stronger signal reception in areas with weak coverage compared to modems with internal antennas*.

  • 2. Interactive Design

    • With a plug-and-play USB interface, you can quickly connect to the internet without complex setup, unlike modems requiring driver installation or configuration.

  • 3. Performance Parameters

    • With up to 21Mbps download speeds, you can enjoy 20x faster data transfers than older 2G modems*, enabling smoother streaming and file transfers.

  • 4. Scenario Solutions

    • With unlocked CDMA compatibility, you can switch between global carriers for flexible connectivity, ideal for travelers or users needing multi-network support.

  • 5. Certification Standards

    • With FCC certification, you can ensure reliable performance meeting industry safety and regulatory standards*.

Product details

Unlocked 3G Modem E3531s-1 Wireless CDMA 3g Usb Data Card with 21mbps Speed

The Unlocked 3G Modem E3531s-1 is a sleek, minimalist USB data card designed for reliable wireless connectivity. With a white, smooth plastic build and an external antenna, it delivers up to 21Mbps speeds for seamless data transfer and mobile broadband access. Ideal for users needing basic 3G connectivity, its straightforward design prioritizes portability and ease of use.

Technical specifications

FeatureSpecificationBenefit
Antenna TypeExternalEnhanced signal reception in weak areas
InterfaceUSBPlug-and-play compatibility with PCs
Network Speed21MbpsFast data transfer for browsing/media
ConnectivityWireless CDMA 3GMobile broadband access on-the-go
DesignMinimalist, no visible brandingSlim profile for portability

Customization guide

While the base model lacks visible customization options, its external antenna design allows users to upgrade signal strength with third-party accessories. For specialized needs (e.g., rugged environments), pairing with a reinforced USB housing or directional antenna can optimize performance.

Get inspired

Whether you’re a traveler needing internet access abroad or a small business relying on mobile hotspots, the E3531s-1 ensures stable 3G connectivity. Its compact form factor makes it perfect for discreet, on-demand data solutions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Max Speed21Mbps28Mbps (+33%)30Mbps (+43%)*
AntennaExternal (fixed)Foldable externalDual external
Signal StrengthStandard+20% boostedEnterprise-grade
SecurityBasic encryptionMilitary-gradeDual-factor auth

Supplier's note

  1. Technical Breakthroughs:

    • External Antenna Design: Boosts signal by 30% in rural areas compared to internal antennas.
    • 21Mbps Speed: Outperforms legacy 2G modems by 40%, enabling HD streaming.
    • Minimalist Build: 40% thinner than competitors, fitting easily in pockets.

  2. Version Selection Guide:

    • Base Model: Ideal for casual users needing basic connectivity (e.g., travelers).
    • Advanced Model: Targets professionals requiring faster speeds and better signal reliability (e.g., field workers).
    • Pro Model: Designed for enterprise users needing enterprise-grade security and dual-antenna redundancy (e.g., remote offices).

With the Pro model’s dual antennas, you can maintain stable connections in signal-poor areas. Its military-grade encryption ensures secure data transfer for sensitive operations. Pair this with its 30Mbps speed, and you gain a reliable tool for critical workflows. For everyday use, the Base Model’s simplicity and affordability make it a no-brainer.

Frequently asked questions

  • Which unlocked 3G modem is best for small businesses needing reliable connectivity?

  • How do I clean the external antenna of the E3531s-1 modem?

  • Is the E3531s-1 3G modem FCC-certified for US use?

  • Can the E3531s-1 modem be customized for specific network regions?

  • Does the E3531s-1 support multiple carriers without locking?

  • What factors affect the 21mbps speed of the E3531s-1 modem?

  • Is the E3531s-1 suitable for international travel with CDMA networks?

  • Why is the E3531s-1 modem designed with a minimalist USB form factor?

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