Purchase price of 100g optical module

100G optical modules typically range from $35 for short-reach SR modules to over $20,000 for long-haul coherent DWDM units, depending on type, reach, and vendor.Price Ranges by Module TypeShort-reach SR/DR modules: Entry-level 100G QSFP28 SR modules for data centers can cost $35–$250 per unit, offering affordable high-speed connectivity for short distances over multimode fiber (MMF) .Mid-range LR/CWDM modules: Vendor-certified long-reach modules like LR4, FR1, or CWDM4 typically cost $200–$1,000, providing 10 km single-mode fiber (SMF) reach and broad platform compatibility .High-end DWDM/coherent modules: Specialized 100G DWDM or coherent transceivers for metro or long-haul networks can exceed $2,000–$20,000, reflecting the complexity of single-lambda lasers, tunable optics, and long-distance performance .Factors Affecting CostTechnology and Components: Modules with single-mode DFB lasers, coherent optics, or tunable DWDM components are more expensive than VCSEL-based short-reach SR modules .Branding and Vendor Support: OEM-branded modules (Cisco, Juniper, HPE) often carry a premium due to warranty, platform certification, and support, while third-party compatible modules can be significantly cheaper .Engineering and Testing: Costs include design verification, reliability testing (temperature cycling, moisture, shock), and production overhead, which influence the final price .Volume and Business Strategy: Bulk purchases, vendor relationships, and promotional pricing can reduce per-unit cost, especially in B2B data center deployments .Cost EfficiencyWhen evaluating 100G modules, consider cost per gigabit. For example, a $35 QSFP28 SR4 module delivers 100G, equating to $0.35 per Gbps, which is far more cost-effective than lower-speed modules like 10G SFP+ at $2 per Gbps .SummaryEntry-level short-reach 100G: $35–$250Mid-range long-reach 100G: $200–$1,000High-end coherent/long-haul 100G: $2,000–$20,000+ Choosing the right module depends on reach requirements, fiber type, vendor preference, and budget, with third-party modules offering significant savings for standard data center applications while OEM modules provide certified performance and support .