会社ブログについて Mingjiada Supplies and Recycles ASMedia ASM3042 USB 3.2 Gen 1 Host Controller (5 Gbps) — PCIe Gen 3 Dual-Port

Mingjiada Supplies and Recycles ASMedia ASM3042 USB 3.2 Gen1 Host Controllers (5 Gbps)—PCIe Gen3 Dual-Port xHCI Solutions and Inventory Liquidation Channels

The ASM3042’s Positioning Within the ASMedia USB Host Controller Family

ASMedia’s USB host controller product line covers a complete range of data rates from 5 Gbps to 20 Gbps: the ASM3042 corresponds to the 5 Gbps tier of USB 3.2 Gen1×1, the ASM3142 targets 10 Gbps, and the ASM3242 targets 20 Gbps. Within this product matrix, the core value of the ASM3042 lies not in pursuing extreme data rates, but in providing the most cost-effective host-side bridging solution for “basic high-speed USB expansion” through its PCIe Gen3×1 upstream interface, dual USB 3.2 ports, and compact package.

For motherboard manufacturers, expansion card designers, and embedded solution providers, the selection criteria for the ASM3042 typically revolve around three factors: whether native dual USB 3.2 Gen1 ports are required, whether a PCIe Gen3 lane is available, and whether the BOM and power consumption budgets are critical considerations. Mingjiada Electronics meets the distribution needs for this model through both ASMedia chip distribution and inventory buyback services, covering both brand-new, factory-sealed stock for mass production and providing channels for ASM3042 buyback and inventory liquidation for excess stock.

Chip Technical Specifications: PCIe Gen3 to Dual-Port USB 3.2 Gen1 Bridge Logic

The ASM3042 is an xHCI host controller whose core function is to bridge the PCI Express interface to USB 3.2, complying with the USB 3.2 Specification Revision 1.0 and the Intel xHCI Specification Revision 1.1. On the PCIe side, it supports Gen3×1 upstream, providing a high-bandwidth, low-latency data path, and is compatible with specifications such as PCI Express Base 3.0 and PCI Express Card Electromechanical 2.0; the chip integrates a spread-spectrum controller for the PCIe interface, supporting SRIS mode and PCIe bus overclocking capabilities.

On the USB side, the ASM3042 provides two USB 3.2 ports, with a maximum speed of 5 Gbps per port (USB 3.2 Gen1×1), while maintaining backward compatibility with USB 2.0 and traditional USB functions and devices. The chip supports various transfer modes, including controlled, bulk, stream, interrupt, and synchronous, and features independent port power control, overcurrent detection, and remote wake-up capabilities, along with an integrated USB 3.1 spread-spectrum controller. At the system adaptation level, the ASM3042 supports Microsoft Modern Standby, allows firmware uploads via an external SPI ROM, and is compatible with Windows built-in drivers and various Linux kernels.

In terms of packaging, the ASM3042 uses a green 9×9mm QFN64 (lead-free) package that complies with RoHS standards, making it suitable for expansion card and embedded motherboard designs with constraints on PCB area and power consumption. This package specification also provides a degree of flexibility in replacement or co-board designs; for projects currently using ASMedia controller solutions from the same series, migration costs at the BOM level are relatively manageable.

Typical Application Scenarios: From Motherboard Rear I/O to Multi-Port Image Capture

Common use cases for the ASM3042 are concentrated in host-side designs that “require converting PCIe lanes into multiple reliable USB 3.2 Gen1 ports.” In the PC motherboard and expansion card sectors, it is used for rear USB 3.2 port expansion and PCIe-to-USB expansion cards, adding 5 Gbps ports to desktops and workstations. Some Z690 platform products from motherboard manufacturers such as ASRock utilize the ASMedia ASM3042 to provide controller functionality for USB 3.1 Type-A ports.

In the embedded systems sector, the M5Stack CM4Stack development kit uses the ASM3042 to provide host control for two USB 3.2-A ports. Image acquisition and machine vision are typical applications where multiple ASM3042 chips are used in parallel: each chip independently controls two ports, and cascading multiple chips allows for the construction of multi-port USB image capture cards, thereby avoiding frame rate drops caused by multiple cameras sharing bandwidth. Furthermore, the ASM3042 is well-suited for host interface expansion needs in industrial control and test equipment that “require basic USB 3.0 speeds but are sensitive to cost and power consumption.”

Mingjiada’s Dual-Channel Supply and Recycling: Spot Purchasing and Inventory Disposal of the ASM3042

Founded in 1996, Mingjiada Electronics is an authorized independent distributor of electronic components with a long-standing focus on the ASMedia product line. Its supply portfolio covers ASMedia’s full range of USB controller chips, PCIe bridge chips, and high-speed switch chips, and the company has obtained ISO 9001 quality management system certification. For the ASM3042 specifically, Mingjiada operates both supply and buyback channels:

Supply: For mass production procurement, sample verification, and small-batch trial production, we provide brand-new, factory-sealed ASM3042 components in stock. For production projects requiring rapid entry into design verification or restocking, our stock channel can shorten the lead time from part selection confirmation to material delivery.

Buyback: For factory dead stock, project surplus, and ASM3042 inventory resulting from BOM changes, we offer buyback evaluations and quotes. Mingjiada’s buyback services cover active components, modules, and other product categories; both original, packaged materials and loose inventory can be submitted for evaluation. For companies holding ASM3042 inventory, consolidating this part into the centralized buyback program for ASMedia series chips is more advantageous than handling it separately, as it ensures quotes that better reflect current market conditions.

Get an ASM3042 Quote or Buyback Proposal

To inquire about the latest supply prices for ASM3042, request samples, or submit an inventory list for a recycling evaluation, please contact Mingjiada Electronics via the following methods:

Supply and Recycling Inquiries: Mr. Chen 13410018555 (also on WeChat)

Email: sales@hkmjd.com

Phone: +86-755-83294757

Website: www.integrated-ic.com

When submitting ASM3042 inventory information, please specify the quantity, package lot number, condition (original or refurbished), and packaging type to enable our evaluation team to provide a quote more quickly. Whether you need to purchase ASM3042 in stock or wish to sell your ASM3042 inventory for cash, you can contact us directly through the channels listed above.