Amphenol and Linktel Technologies are key manufacturers of QSFP LPO optical modules, offering high-speed, low-latency solutions for data centers and AI/ML applications.

Amphenol

Amphenol produces QSFP-DD Linear Pluggable Optical (LPO) transceivers designed for PCIe Gen 5.0 and high-bandwidth optical links. These modules deliver low-latency, high-speed connectivity for rack-to-rack interconnects and server disaggregation, making them suitable for AI/ML workloads and large-scale data center deployments. Amphenol's LPO modules operate without DSPs, using transimpedance amplifiers (TIA) and linear drivers, which reduces power consumption and latency while shifting signal processing to the host device .

Linktel Technologies

Linktel Technologies offers a portfolio of QSFP-DD and OSFP LPO modules, including 400G and 800G variants. Their LPO modules are designed without DSPs or CDRs, providing ultra-low latency and energy-efficient performance for switch-to-switch, switch-to-server, and GPU-to-GPU connectivity in AI and machine learning applications. Linktel operates internationally with centers in Malaysia, China, Singapore, and the USA, supporting global deployment and customer service .

FLEXOPTIX

FLEXOPTIX also manufactures LPO transceivers in QSFP and OSFP form factors, targeting modern data centers and AI clusters. Their modules leverage host-managed signal processing, eliminating DSPs in the module to achieve lower power consumption and minimal latency, while remaining compatible with high-speed data center architectures .

Summary

These manufacturers focus on high-speed, low-latency, and energy-efficient optical modules:

• Amphenol: QSFP-DD LPO for PCIe Gen 5.0, AI/ML, and rack-scale data centers.
• Linktel Technologies: QSFP-DD and OSFP LPO modules, 400G/800G, global operations.
• FLEXOPTIX: QSFP and OSFP LPO modules, host-managed signal processing, low latency. These LPO modules are increasingly adopted in hyperscale data centers, AI clusters, and high-performance computing environments, where power efficiency and minimal latency are critical.