Q1. What is the OSFP‑800G‑2FR4 Finned Top module?
A: The OSFP‑800G‑2FR4 Finned Top is an OSFP112‑form-factor transceiver designed for 800 Gbps Ethernet transmission over single-mode fiber (SMF) up to 2 km. It uses four CWDM wavelengths (1271/1291/1311/1331 nm) across two independent 400G‑FR4 links, with dual duplex LC connectors and a finned-top housing for enhanced thermal performance.
Q2. What does “2FR4” denote in the model name?
A: 2FR4 indicates dual 400G‑FR4 transmission lanes—effectively combining two 400GBASE‑FR4 channels to achieve 800 Gbps, using CWDM optical multiplexing.
Q3. What is the maximum supported reach?
A: Supports up to 2 km over G.652 SMF when host-side forward error correction (FEC) such as KP4 is enabled.
Q4. What connector and fiber type does it use?
A: Uses dual duplex LC/UPC connectors over single-mode 9/125 µm SMF.
Q5. Is this module compatible across multiple brands?
A: Yes. It's compliant with OSFP MSA and IEEE 802.3cu/P802.3ck, and proven interoperable with platforms from Arista, Juniper, Nvidia, Coherent, FS.com, QSFPTEK, etc., provided that vendor allows generic optics.
Q6. Is the module hot-pluggable?
A: Yes, it fully supports hot-plug insertion and removal without powering down the system.
Q7. Can it be used in breakout mode?
A: Yes—supports 2×400G‑FR4 breakout (two independent 400G links) via host support, though it does not support optical breakout into multiple 100G ports.
Q8. Does it support diagnostic monitoring (DDM/DOM)?
A: Yes. It supports digital diagnostic monitoring via CMIS v5.0 over an I²C interface (DOM/DDM), enabling real-time monitoring of optical power, temperature, voltage, etc.
Q9. What are the aggregate and per-lane data rates?
A: Provides up to 850 Gbps aggregate bandwidth (2×400G or 800G) via 8 CWDM lanes, each at 106.25 Gbps PAM4 (53.125 GBd). Electrical interface corresponds to 2×400GAUI‑4.
Q10. What is the typical power consumption?
A: Typically ≤ 16W power consumption, depending on vendor and configuration; many implementations fall around 14W.
Q11. What operating temperature range is supported?
A: Commercial-grade case temperature range: 0 °C to +70 °C; storage range typically up to –40 °C to +85 °C.
Q12. Which standards does it comply with?
A: Complies with IEEE 802.3cu (FR4), IEEE 802.3ck, OSFP112 MSA v4.x/v5.x, CMIS v5.0, and supports optical protocols for InfiniBand NDR or Ethernet.
Q13. How to verify compatibility with my network device?
A: Confirm your hardware supports OSFP 800G FR4 dual‑lane mode, allows generic optics, and has FEC enabled. Many vendors list compatibility for part numbers (e.g. OSFP-800G-2FR4‑C/A).
Q14. What are typical applications?
A: Ideal for long-range data center interconnects (up to 2 km), HPC or AI clustering, and breaking out to dual 400G pipelines while maintaining high spectral efficiency.