مدونة الشركة حول Supply and Recycling of Asmedia ASM3242 USB 3.2 Host Controllers—for Motherboards, Desktops, Laptops, Workstations, and Servers

Mingjiada Electronics now offers brand-new, genuine ASMedia ASM3242 USB 3.2 host controllers and provides long-term, high-price buyback services for these devices. Featuring a PCIe 3.0 x4 upstream interface, 20 Gbps per-port bandwidth, and a compact QFN88 package, this device has become the top choice for motherboard manufacturers, expansion card manufacturers, and embedded platform designers.

I. Product Introduction

The ASM3242 is a Universal Serial Bus xHCI host controller introduced by ASMedia, designed to bridge the PCI Express interface to USB 3.2 20 Gbps. It complies with the USB 3.2 Specification Revision 1.0 and the Intel Extensible Host Controller Interface (xHCI) Specification Revision 1.1. The chip supports one USB 3.2 20 Gbps port, enabling high-bandwidth, low-latency data transfer via a PCIe Gen 3 x4 interface. It also supports the “Multiple INs” feature to fully utilize the available bandwidth of the USB 3.2 Gen 2x2 bus, thereby achieving full utilization of the 20 Gbps data rate.

The ASM3242 integrates ASMedia’s proprietary PCI Express/SuperSpeed USB/USB 2.0 PHY, supports built-in drivers for Microsoft Windows and various Linux kernels, has firmware uploaded via an external SPI ROM, and uses an external 20 MHz differential crystal oscillator. The chip is housed in an eco-friendly 10×10 mm QFN88 package (lead-free) and complies with RoHS environmental standards.

II. Key Specifications

Manufacturer: ASMedia (Xiangshuo Technology)

Device Type: USB 3.2 Gen2x2 xHCI Host Controller

Uplink Interface: PCIe Gen3 x4 (4 lanes)

USB Port: 1 USB 3.2 port

Maximum Data Transfer Rate: 20 Gbps (USB 3.2 Gen2x2)

Compatibility: Backward compatible with USB 3.2 Gen2x1 (10 Gbps), Gen1 (5 Gbps), USB 2.0 (480 Mbps), and USB 1.1 (12 Mbps)

Firmware Storage: Uploaded via external SPI ROM

External Crystal Oscillator: 20 MHz differential crystal oscillator

Package: QFN88 (10 × 10 mm, lead-free, RoHS)

Driver Support: Built-in drivers for Microsoft Windows; various Linux kernels

Protocol Compatibility: USB 3.2 Specification Rev. 1.0, xHCI Specification Rev. 1.1, USB Attached SCSI Protocol Rev. 1.0

III. Features and Advantages

1. PCIe 3.0 x4 Uplink, Fully Utilizing 20 Gbps Bandwidth

The ASM3242 features a 4-channel PCIe Gen3 uplink port with ample total bandwidth, fully meeting the 20 Gbps theoretical bandwidth requirement of the USB 3.2 Gen2x2 standard. It supports PCI Express link power management and integrates a spread-spectrum controller to ensure signal integrity during high-speed data transfer.

2. Multiple INs Feature for Enhanced Transfer Efficiency

The chip supports the Multiple INs feature, allowing the host controller to receive data from multiple endpoints simultaneously. This fully utilizes the available bandwidth of the USB 3.2 Gen2x2 bus, ensuring full utilization of the 20 Gbps data rate. This feature is particularly critical for scenarios such as large file transfers, 4K video editing, and data backup.

3. Full Compatibility with the USB Protocol Stack

It supports the five USB transfer modes—Control, Bulk, Stream, Interrupt, and Isochronous—and is compatible with the USB Attached SCSI Protocol (UASP). It also supports independent port power control, overcurrent detection, and remote wake-up events. The chip is backward compatible with traditional USB functions and devices and supports the Debugport feature on USB 3.2 ports, facilitating system debugging.

4. Low-Power Architecture Design

Utilizing advanced manufacturing processes and low-voltage power supply, the chip adheres to standard PCI Express/USB link power management specifications. Combined with advanced on-chip power management mechanisms, it effectively reduces total power consumption in idle and standby states. For server and workstation platforms requiring prolonged operation, these low-power features help reduce the overall thermal load on the system.

5. Extensive Driver and Platform Compatibility

Integrated with ASMedia’s proprietary PHY, it supports built-in drivers for Microsoft Windows and various Linux kernels, requiring no additional driver installation. It supports flexible firmware uploads via an external SPI ROM, facilitating customized development and version upgrades for manufacturers.

IV. Application Areas

The ASM3242 is suitable for a wide range of applications, including motherboards, desktop computers, laptops, workstations, servers, expansion cards, and PCI Express-based embedded platforms.

V. Mingjiada Electronics Supply and Recycling Services

Supply Services:

Brand-new, factory-sealed ASM3242 USB 3.2 Gen2x2 host controllers in QFN88 packaging are available in stock, with ample inventory

Covering the full range of ASMedia USB controller chips: ASM4242 (USB4), ASM3242 (USB 3.2 20G), ASM3142 (USB 3.1 Gen2), ASM3042 (USB 3.2 Gen1), and other host controllers

Supporting rapid delivery for both small-batch samples and large-volume orders

Recycling Services:

We are consistently seeking to purchase the full range of ASMedia USB controller chips—including the ASM4242, ASM3242, ASM3142, and ASM3042—at competitive prices.

We welcome manufacturers, traders, and individual sellers worldwide. Customers with inventory of the above models are invited to contact us to discuss opportunities.

We accept both large-volume warehouse stock and small, scattered quantities of obsolete inventory, regardless of quantity.

For inquiries regarding the supply and buyback of ASM3242, please contact Mingjiada Electronics.

Contact Information:

Contact Person: Mr. Chen

Mobile: +86 13410018555

Email: sales@hkmjd.com

Website: www.integrated-ic.com

Address: Rooms 1239–1241, Guoli Building, Zhenzhong Road, Futian District, Shenzhen