Price Trends of 400g Optical Modules

The price of a 400G optical module ranges from approximately $1,400 for short-reach SR8 modules to over $130,000 for long-haul ZR+ modules, depending on type, reach, and vendor.

Pricing Overview

• Short-Reach (SR8) Modules: Designed for in-rack or cross-row connections, these modules are the most economical, typically priced between $1,400 and $1,800 from reputable third-party vendors .
• Medium-Reach (DR4/FR4) Modules: Used for inter-row or campus links, prices are higher due to more advanced components, but competitive third-party markets have compressed costs significantly .
• Long-Reach (LR4, ZR, ZR+) Modules: Intended for data center interconnects (DCI) or long-haul transmission, OEM LR4 modules can exceed $10,000, while ZR+ modules may surpass $130,000 .

Factors Affecting Price

1. Form Factor and Compatibility: QSFP-DD and OSFP modules differ in size, thermal management, and integration complexity, affecting cost by 5–15% or more .
2. Components and Materials: DSP chips ($150–$300), lasers (VCSELs for SR4, EML/DFB for FR4/LR4), connectors, and specialty metals contribute significantly to the bill of materials .
3. Supply Chain and Market Conditions: Semiconductor shortages, shipping disruptions, and raw material price volatility can add up to 25% premiums for urgent orders .
4. Testing and Compliance: Modules undergo rigorous BER testing, eye-diagram analysis, and temperature cycling, which adds to the overall cost .

Vendor Considerations

• OEM vs Third-Party: OEM modules often carry a premium due to brand, warranty, and certification, while third-party modules offer cost-effective alternatives without compromising performance for standard deployments .
• Volume Discounts: Many vendors provide tiered pricing for bulk purchases, which can significantly reduce per-unit costs .

Market Context

The global 400G optical module market is projected to reach USD 14.8 billion by 2025, driven by hyperscale data centers, AI workloads, and cloud adoption. Innovations in Silicon Photonics and Indium Phosphide integration are reducing power consumption and improving efficiency, which indirectly affects pricing and total cost of ownership . For a specific quote, it is recommended to identify the module type (SR8, DR4, LR4, ZR+), vendor preference (OEM or third-party), and required quantity, as these factors determine the final price. Cisco QSFP-DD modules, for example, are available with discounts and fast shipping through authorized distributors .