Launch ポーカー ゲーム 機 賭博 ST51 Series Connector Compatible with microSD™ EXPRESS Cards

July 16, 2025

JAE has developed and begun selling the ST51 Series push-push type connector compatible with the new microSD EXPRESS card standard, a recording medium capable ポーカー ゲーム 機 賭博 high-speed reading and writing ポーカー ゲーム 機 賭博 large volumes ポーカー ゲーム 機 賭博 data.

Overview

In recent years, with the advancement ポーカー ゲーム 機 賭博 ICT devices and the increase in electronic data volume, demand is expected to grow for microSD EXPRESS cards, which ポーカー ゲーム 機 賭博fer faster data transfer speeds compared to the conventional microSD cards with UHS-I/UHS-II standards, for video recording and external storage applications.
In response to this trend, JAE has developed and started selling the “ST51 Series”, a push-push type connector compatible with microSD EXPRESS cards. This new product inherits the proven mechanical lock mechanism (*1) and multi-point hold-down structure (*2) from JAE’s previous models, ensuring secure card lock performance and robustness, while adding dedicated high-speed transmission terminals to enable high-capacity, high-speed data communication compliant with the microSD EXPRESS standard.
Furthermore, EMC and heat dissipation measures have been incorporated into the hold-down structure, allowing the product to address challenges associated with high-speed transmission while maintaining a board footprint comparable to existing products. In addition to microSD EXPRESS cards, it also supports UHS-I and UHS-II standard cards (*3), making it suitable for a wide range ポーカー ゲーム 機 賭博 applications.

• Mechanical lock mechanism: A mechanism that provides a mechanical lock using “stopper” and “lock” components. It ポーカー ゲーム 機 賭博fers strong resistance to vibration and physical shocks.
• Multi-point hold down structure: A reinforcement fitting for board mounting that provides robustness, electromagnetic compatibility measures, and heat-dissipating effects.
• The communication speed when mating a UHS-II card will be limited to UHS-I.

microSD Card Comparison

	UHS-Ⅰ	UHS-Ⅱ	EXPRESS
Pin Layout
Compatible Connectors	ST12 Series and Others	ST50 Series	ST51 Series

Mechanical Lock Mechanism

Multi-Point Hold-Down Structure

Features

• Push-push type connector for microSD EXPRESS cards standardized by SDA (*4)
• Supports PCIe® 3.0 x 1
• Dimensions: 1.4 mm (H) x 14.6 mm (W) x 15.95 mm (D); 17.37 mm including card, and maintains a footprint comparable to the existing product
• Push stroke: 0.7 mm, card eject distance: 3.18 mm, ensures ease ポーカー ゲーム 機 賭博 operation
• Card detection switch included (D-SW): normally open type
• Multi-point hold-down structure provides robustness, EMC performance, and heat dissipation
• Mechanical locking structure for secure card retention

＊4：SDASD Association (a standards body that sets standards for SD memory cards)

Applicable Markets

General Specifications

Materials and finishes

• microSD™ is a trademark ポーカー ゲーム 機 賭博 the SD Association.
• PCIe is a trademark ポーカー ゲーム 機 賭博 PCI-SIG.

ST51 Series(For more details)

Information and details given here are as ポーカー ゲーム 機 賭博 the date ポーカー ゲーム 機 賭博 publication. Please note that the details may be changed.