PCIe 4.0 M.2 Key A.E. to Mini PCIe Female Extension Cable

PCIe 4.0 M.2 Key A.E. to Mini PCIe Female Extension Cable

The PCIe 4.0 M.2 Key A.E. to Mini PCIe Female Extension Cable is a high-performance adapter solution designed to bridge next-generation M.2 interfaces with legacy Mini PCIe devices while supporting the higher bandwidth of PCIe 4.0. This cable converts a standard M.2 Key A or Key E slot (Key A+E) into a dedicated Mini PCIe female slot, enabling the use of half-size and full-size Mini PCIe modules in modern systems that lack native Mini PCIe support. Supporting both PCIe 4.0 and USB signals, this adapter is compatible with a wide range of Mini PCIe peripherals, including WLAN, Bluetooth, GNSS, 3G, HSPA, LTE, and NFC modules. Operating at PCIe 4.0 speeds of up to 16.0 GT/s per lane, this cable delivers double the bandwidth of PCIe 3.0 for compatible modules, while remaining fully backward compatible with PCIe 3.0, 2.0, and 1.0 devices. Engineered with precision-matched axial conductors, advanced multi-layer shielding, and robust PCB protection, the cable ensures stable signal integrity at higher frequencies. The flexible cable design allows optimal module positioning within system chassis, making it an ideal solution for upgrading, repositioning, or repurposing Mini PCIe devices in compact systems, embedded applications, and custom integration projects.

Features

• The cable features an M.2 Key A+E male connector on the host side, compatible with standard M.2 slots based on Key A or Key E. It provides access to both PCIe and USB signals from the host system, ensuring full functionality for modules that combine multiple interfaces (e.g., WLAN and Bluetooth).
• On the target end, the cable presents a standard Mini PCIe female slot, supporting both half-size (30x26.8mm) and full-size (30x50mm) Mini PCIe cards. The slot is compliant with Mini PCIe mechanical specifications, ensuring a secure fit for a wide range of legacy modules.
• The cable supports PCIe 4.0 signalling with a per-lane data rate of up to 16.0 GT/s, delivering approximately 16 Gbps of raw bandwidth for compatible Mini PCIe modules. It is fully backward compatible with PCIe 3.0 (8 GT/s), PCIe 2.0 (5 GT/s), and PCIe 1.0 (2.5 GT/s). The cable also maintains USB 2.0 connectivity, enabling Bluetooth and other USB-based functions of the inserted module.
• To maintain signal integrity at the higher frequencies of PCIe 4.0, the cable employs precision-matched 30 AWG axial conductors for each high-speed pair, with individual foil shielding, an overall braid, and an outer foil shield. This advanced EMI shielding with conducting polymer coverage minimises insertion loss, crosstalk, and electromagnetic interference, ensuring clean signal transmission over the cable length. The cable is carefully tuned to meet PCIe 4.0 channel budget requirements.
• The PCB on the target end features a durable, high-frequency design optimised for low-attenuation signal transmission. Solder joints are reinforced with PCB-swaddling and fixed with bolts and nuts to prevent tearing and short circuits, ensuring long-term reliability even with repeated Mini PCIe card installation and removal.
• The flexible cable has a thickness of approximately 1.4mm, making it soft, highly routable, and foldable to fit tight spaces. The cable can be bent or folded for space-saving installation, though bending or pulling within 2cm of the solder joints is not recommended to avoid stress on the connections.
• As a passive copper assembly with no active retimers, the cable adds negligible latency and consumes no additional power from the host. The adapter is OS independent and requires no driver installation, ensuring plug-and-play compatibility across Windows, Linux, and macOS.
• Custom lengths are available upon request, with standard options typically ranging from 3 cm to 100 cm, allowing flexible placement of the Mini PCIe module within the chassis for improved thermal management and cable routing.

Specifications

• Product Name: PCIe 4.0 M.2 Key A.E. to Mini PCIe Female Extension Cable
• Host Interface: M.2 Key A+E Male (59-pin)
• Target Interface: Mini PCIe Female Slot (52-pin)
• Supported Form Factors: Half-size (30x26.8mm) and full-size (30x50mm) Mini PCIe cards
• Data Transfer Rate: Up to 16.0 GT/s (PCIe 4.0 x1); approx. 16 Gbps maximum bandwidth
• Supported Protocols: PCI Express 4.0, 3.0, 2.0, 1.0; USB 2.0
• PCI Express Revision: 1.1, 2.0, 3.0, 4.0 compatible
• Cable Type: Shielded flexible cable assembly with axial conductors
• Cable Thickness: Approx. 1.4mm (1/16 inch)
• Cable Width: Approx. 13mm (1/2 inch)
• Cable Length: Standard options include 10cm, 15cm, 20cm, 30cm; custom lengths from 3cm to 100cm available upon request
• Shielding: Individual pair foil shielding + overall braid and outer foil shield with conducting polymer coverage
• Impedance: 85 ohm ± 10% (differential) for data pairs
• Insertion Loss: Optimised for PCIe 4.0 channel budget (typical < 1.5 dB at 8 GHz)
• PCB Quality: High-frequency, low-attenuation design with solder point protection
• Operating Temperature: 0°C to +80°C
• Storage Temperature: -40°C to +85°C
• Power Delivery: Provides 3.3V power from the host M.2 slot (typically up to 3A) to the connected Mini PCIe module
• Compatibility: OS independent; Windows, Linux, macOS
• RoHS Compliance: Yes, fully compliant with RoHS and REACH directives

Applications

• Legacy Device Support: Enables the use of legacy Mini PCIe modules (WLAN, Bluetooth, GNSS, 3G, LTE, HSPA, NFC) in modern systems equipped only with M.2 Key A or Key E slots, while leveraging the higher bandwidth of PCIe 4.0 for compatible modules.
• System Upgrades: Allows users to repurpose existing Mini PCIe wireless or IoT modules when upgrading to newer motherboards that lack Mini PCIe support, extending the useful life of legacy peripherals while benefiting from PCIe 4.0 performance.
• Compact System Builds: Ideal for mini-PCs, NUCs, and small form factor systems where the M.2 slot is accessible but Mini PCIe is not available, enabling flexible module placement for optimal signal reception and thermal management.
• Embedded and Industrial Applications: Supports industrial systems requiring specific Mini PCIe modules for connectivity, data acquisition, or control functions, with the extension cable allowing modules to be positioned away from interference sources and heat-generating components.
• Prototyping and Development: Facilitates testing and validation of Mini PCIe devices in development environments where M.2 interfaces are more readily available than legacy Mini PCIe slots, enabling high-speed PCIe 4.0 testing on modern platforms.
• Custom Configurations: Enables unique system layouts where direct motherboard mounting is not optimal, providing flexibility for bespoke designs and overcoming mechanical constraints in custom enclosures.
• OEM Solutions: Provides a versatile solution for system integrators needing to incorporate legacy Mini PCIe modules into new designs without redesigning the motherboard, reducing development time and cost.

For custom lengths, special jacket materials, or alternative connector orientations, please contact our sales team to tailor the cable to your specific system requirements.

P4-M2AE-MPF

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