How much does a 40G optical transceiver module cost

A 40G optical transceiver module typically costs between $40 and $1,000, depending on type, reach, and brand. Price RangesShort-Reach (SR4) Modules: Compatible 40G SR4 modules for multimode fiber are the most cost-efficient, generally priced between $40 and $150 per unit, making them ideal for data center interconnects and short-distance applications (up to 150m–400m).

Long-

Reach (LR4) Modules: Single-mode LR4 modules, suitable for distances up to 10km, are more expensive due to the use of DFB lasers and wavelength multiplexing, typically costing around $299 per unit. Extended Reach (ER4) and Specialized Modules: Modules designed for longer distances or specialized applications, such as 20km–80km links or DWDM, can cost $300 to $1,000+, reflecting the added optical complexity and vendor certification.

Direct-

Attach Copper (DAC) and Active Optical Cables (AOC): Short fixed-length 40G cables (1–5m) are priced $50–$500, depending on length and speed.

Factors Affecting Cost

Technology and Components: VCSEL-based SR modules are cheaper, while single-mode DFB lasers, coherent optics, and DWDM components increase cost. Brand and Certification: OEM-branded or vendor-certified modules include warranty and compatibility guarantees, which raise the price compared to third-party compatible modules. Reach and Fiber Type: Multimode SR modules are less expensive than single-mode LR or ER modules due to simpler optical design.

Volume and Market Maturity: Bulk purchases and widely adopted modules reduce per-unit cost, whereas niche or low-volume modules remain expensive. Example Pricing from VendorsFS.com: 40G LR4 QSFP+ module priced at $299, SR4 modules starting around $43–$150. Fibrecross OEM/ODM: 40GBASE-SR4 QSFP+ at $43, 40GBASE-LR4 SMF at $299, high-performance short links around $249.

In summary, 40G optical transceiver modules range from $40 for basic short-reach compatible units to over $1,000 for long-reach or specialized modules, with pricing influenced by reach, fiber type, brand, and certification.