PCI Express communication card PCIe-AE304bp

Overview
PCIe-AE304bp is a fanless, wide-temperature, single-slot half-length PCIe add-on card providing four native 100/1000BASE-T1 Automotive Ethernet ports for in-vehicle test, validation and edge compute systems. It interfaces directly with high-bandwidth sensors such as LiDAR and radar without external media converters.

Introduction
100/1000BASE-T1 Automotive Ethernet offers a scalable, weight- and space-saving communication backbone for ADAS and autonomous-driving development. By supporting single-pair cabling and locking H‑MTD connectors, BASE‑T1 reduces wiring complexity while enabling high-throughput links for data-intensive sensors. PCIe-AE304bp is intended for test platforms and edge systems that require deterministic connectivity and precise timing.

Design and Integration
The card integrates four Marvell 88Q2221M Automotive Ethernet PHYs and supports software-configurable 100/1000BASE-T1 operation with flexible master/slave settings. It requires a PCIe Gen2 x4 host lane in a standard x4 slot and installs directly into x86-based test systems without external converters. The locking automotive H‑MTD interface minimizes vibration-induced disconnects. IEEE 1588 PTP support enables sub-microsecond time synchronization with connected sensors.

Key Features

• 4× IEEE 802.3bw/bp 100/1000BASE-T1 via H‑MTD connectors
• PCI Express Gen2 x4 interface
• Single-slot, half-length PCIe card
• Fanless operation from -25°C to 70°C
• Driver-ready; software-configurable master/slave 1000/100BASE-T1
• Verified Linux support (Ubuntu)

Specification
Bus Interface: Gen2 x4 PCI Express
PHYs: 4× Marvell 88Q2221M supporting 100/1000Mbps link speeds
Ports: 4 H‑MTD 100/1000BASE‑T1 ports
Cable: Supports up to 15 m unshielded twisted pair (UTP)
H‑MTD connector code: Z
Dimensions: 167.7 mm (W) × 111 mm (H)
Operating Temperature: -25°C to 70°C (fanless)
Storage Temperature: -40°C to 85°C
Humidity: 10% to 90% non‑condensing
EMC: CE / FCC Class A (EN 55032 & EN 55035)

Verified Host Configurations
Verified OS: Ubuntu 20.04 / 22.04 / 24.04
System note: PCIe-AE304bp is designed for low-latency operation with minimal buffering. BIOS settings, PCIe slot configuration and OS/storage selection can affect stability; consult verified host configurations when integrating into test or edge systems.

Ordering Information
PCIe-AE304bp — 4-port 100/1000BASE-T1 Automotive Ethernet 802.3bw/bp PCIe Card