The cost of server optical modules ranges from $600 for 400G short-reach modules to over $10,000 for long-haul OEM modules, with 800G modules typically priced between $700 and $1,900 depending on type and volume.

Typical Pricing by Module Type

• 400G QSFP-DD: $600–$800 for standard short-reach modules; SR8 modules for in-rack connections cost $1,400–$1,800 from third-party vendors, while long-haul coherent ZR+ modules can exceed $130,000 from OEMs .
• 800G OSFP and QSFP-DD:
  • OSFP-DR8: $1,100–$1,400 (volume pricing for 1,000+ units)
  • QSFP-DD-DR8: $1,000–$1,300 (volume pricing)
  • OSFP-FR4 (longer reach): $1,500–$1,900
  • Linear Pluggable Optics (LPO, no DSP): $700–$900 .

Factors Affecting Cost

1. Vendor Tier: OEM modules (Cisco, Arista) often carry a 30–50% premium over third-party compatible modules .
2. Volume Discounts: Orders over 1,000 units may receive 10–20% discounts; orders over 5,000 units can see 20–30% reductions .
3. Technology Maturity: Early-generation modules cost 40–60% more than mature products .
4. Customization: Special wavelengths, extended temperature ranges, or additional testing can add 15–30% to the base price .
5. Supply Chain and Market Dynamics: Component shortages, logistics, and geopolitical factors can temporarily increase prices by 20–40% .
6. Associated Infrastructure Costs: Cabling, transceivers, and network interface cards contribute to total deployment costs .

Cost Optimization Strategies

• Use Third-Party Compatible Modules: High-quality third-party modules can reduce upfront costs while maintaining reliability .
• Standardize Inventory: Limiting the number of module types reduces CapEx and operational complexity .
• Leverage DAC and AOC for Short Links: Direct Attach Copper (DAC) and Active Optical Cables (AOC) can replace traditional transceivers for short distances, lowering costs .
• Focus on Total Cost of Ownership (TCO): Consider maintenance, downtime, and energy efficiency, not just unit price .
• Partner with Reliable Suppliers: Trusted vendors help avoid costly mistakes and ensure consistent supply .

Summary

Server optical module costs vary widely based on speed, reach, vendor, and volume. For large-scale deployments, 800G modules typically cost $700–$1,900, while 400G modules range from $600–$1,800 for standard data center use. Long-haul OEM modules can be significantly more expensive. Effective procurement requires balancing unit cost, TCO, and operational reliability while leveraging volume discounts and third-party options to optimize overall expenditure .