We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White upright smart card reader with heavy base and green LED

SCM Microsystems Inc.

SCM Microsystems SCR3311 USB 1.1 Smart Card Reader

SKU CH-B1YV-8D3DD

A USB 1.1 smart card reader with a weighted white base for one-handed ISO 7816 card insertion

  • Interface typeUSB 1.1
  • Slots1
  • Installation typeExternal
  • Supported platformsWorks with Windows Vista
  • Product type1 card
  • Product colorWhite
  • PC/SC and EMV compliant for secure transactions
  • Single-hand operation thanks to weighted 0.45 kg base
  • USB 1.1 bus-powered — no external supply needed
  • ISO 7816 Class A and AB smart card support
  • Works with Windows, OS X and Linux

SCM SCR3311 USB 1.1 Smart Card Reader

The SCM Microsystems SCR3311 is an external USB 1.1 smart card reader designed for secure authentication and transaction processing. It features a single slot supporting ISO 7816 Class A and AB cards with sliding contacts rated for 100,000 insertions. The device is fully PC/SC and EMV Level 1 compliant with CCID support.

Suited for single-card desktop authentication

This reader suits users needing a dedicated device for one smart card at a time on Windows, OS X or Linux platforms. It draws power directly from the USB bus and includes a dual-state green LED for status indication. Buyers requiring simultaneous multi-card access or internal installation should consider alternative form factors.

Handles standard smart card operations

The reader communicates at speeds up to 344,105 bps with a frequency up to 8 MHz, supporting T=0 and T=1 protocols. Memory card access is available through the SCM MCARD API. The upright white housing measures 95 x 64 x 85 mm and weighs 0.45 kg, allowing one-handed card insertion on a stable base.

How it compares

Measured against everything we stock in USB & Internal Card Readers, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 70% of the 511 comparable items (median $18.99).

Specifications

Product
Brand nameSCM Microsystems, Inc.
Product type1 card
Product colorWhite
Ports & slots
Interface typeUSB 1.1
Slots1
Compatibility
Supported platformsWorks with Windows Vista
More details
Installation typeExternal

Questions about this item

Do I need a free USB Type-A port on my computer for the SCR3311 reader?

Yes, the reader connects through a USB Type-A plug and draws all of its power from the bus, so a spare port is the only requirement.

Will the SCR3311 work through a USB 2.0 or 3.0 hub that I already use?

The device is a USB 1.1 full-speed peripheral; it will enumerate on any newer hub or port, but the link will run at the 12 Mbps rate of the original interface.

How can I confirm the reader is communicating with a smart card after I plug it in?

The single green LED on the front changes state when a card is inserted and the PC/SC driver establishes a session, giving a clear visual indication of activity.

More in USB & Internal Card Readers

Similar items