Custom 400G Optical Transceiver Modules
As data center bandwidth demands skyrocket, Fibrecross delivers industry-leading 400G optical transceiver modules—engineered for ultra-low latency, minimal power consumption, and rock-solid reliability. Whether you need QSFP-DD, OSFP or QSFP112 form-factors, our turnkey OEM/ODM services ensure seamless integration and rapid time-to-market for your high-speed networking projects.
| Part Number | Product | Max Data Rate | Wavelength | Laser Type (TX/RX) | Tx Power (dBm) | Rx Power (dBm) | Distance | Connector | Temp |
| GL4H-OSMM85SR8C | 400G OSFP SR8 | 425Gbps | 850nm | VCSEL/PIN | -6.5~4 | -8.4 | 100m OM4 | MPO-16/APC | 0~70°C |
| GL4H-QDMM85SR4C | 400G QSFP-DD SR4 | 425Gbps | 850nm | VCSEL/PIN | -4.6~4 | -6.3 | 60m OM3/ 100m OM4 | MPO-12/APC | 0~70°C |
| GL4H-QDMM85SR8C | 400G QSFP-DD SR8 | 425Gbps | 850nm | VCSEL/PIN | -6~4 | -7.9 | 60m OM3/ 100m OM4 | MPO-16/APC | 0~70°C |
| GL4H-Q1MM85SR4C | 400G Q112 SR4 | 425Gbps | 850nm | VCSEL/PIN | -4.6~4 | -6.4 | 30m OM3/ 50m OM4 | MPO-12/APC | 0~70°C |
| GL4H-QDSM31DR4C | 400G QSFP-DD DR4 | 425Gbps | 1310nm | DFB/PIN | -2.9~4 | -5.9 | 500m | MPO-12/APC | 0~70°C |
| GL4H-QDSM31FR4C | 400G QSFP-DD FR4 | 425Gbps | 1271nm,1291nm, 1311nm,1331nm | EML/PIN | -3.3~3.5 | -7.3 | 2km | Duplex LC/UPC | 0~70°C |
Requirements Gathering
→ Laser type, reach, diagnostic features, firmware.Design & Prototyping
→ Schematic review, PCB layout, sample assembly.Validation & Testing
→ Thermal cycling, BER testing, interoperability.Volume Production
→ ISO-certified manufacturing, QA/QC, batch traceability.Logistics & Support
→ Regional stocking, customized labeling, 24/7 tech support.
Broad Compatibility
Supports QSFP-DD, OSFP, CFP8 ports across top-tier switches and routers.Custom OEM/ODM Services
Tailored laser wavelengths, connector types, digital diagnostics, and firmware options.High Reliability
Compliant with IEEE 802.3bs, RoHS, and Telcordia GR-468-CORE standards for harsh environments.Rapid Prototyping & Scale-up
In-house R&D and production lines deliver small-batch samples in 2–3 weeks and volume orders in 4–6 weeks.
FAQ About 400G QSFP-DD transceivers
QSFP-DD is more compact and widely adopted in top-of-rack switches; OSFP offers slightly higher thermal headroom for ultra-dense deployments.
Yes. Our CFP8-ZR4 series supports ITU-compliant tunable wavelengths for metro and long-haul DWDM networks.
We typically offer MOQs as low as 5–10 pieces for prototype validation, with volume discounts starting at 100 units.
All modules ship with test reports and certificates for IEEE, RoHS, Telcordia, CE, and FCC standards.
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