Astera Labs

Astera Labs, Inc., headquartered in San Jose, California, is a fabless manufacturing company that develops connectivity technologies and related software that are used in data centers serving the artificial intelligence and cloud-computing markets. Its products include the Aries PCIe/CXL smart DSP retimers, which extend the physical reach and improve signal integrity for PCI Express connections in large server clusters; Scorpio smart fabric switches, which provide high-bandwidth GPU-to-GPU interconnects and manage complex traffic inside AI racks; Taurus ethernet smart cable modules, which advance high-speed ethernet networking infrastructure over copper links; and Leo CXL memory controllers, which facilitate high-speed Compute Express Link memory expansion and memory pooling for memory-heavy workloads. In 2025, the company received approximately 70% of its revenue from Amazon Web Services and received 86% of its revenue from its three largest customers. Its principal competitors are Broadcom, Marvell Technology, Microchip Technology, Montage Technology, and Rambus.