Q1: What is an OSFP-400G-DR4 Finned Top module?
A: The OSFP-400G-DR4 Finned Top is an OSFP form-factor transceiver supporting 400 Gbps Ethernet over single-mode fiber (SMF) using PAM4-modulated 4×1310 nm lanes, with an MPO-12/APC connector and integrated heat-dissipating fins on top for enhanced cooling.
Q2: What is the maximum reach of this module?
A: Supports up to 500 m over G.652 single-mode fiber, provided host-side FEC (e.g. KP4) is enabled.
Q3: Which connector and fiber type does it use?
A: Utilizes an MPO-12/APC connector over single-mode 9/125 µm fiber.
Q4: Is it compatible with different vendor equipment?
A: Yes. It is OSFP MSA and IEEE 802.3bs/ck compliant, and interoperable with OSFP-enabled equipment from Cisco, Arista, ProLabs, Flexoptix, FS.com, etc., where third-party optics are allowed.
Q5: Does the module support hot-swapping?
A: Yes-fully hot-pluggable, enabling insertion and removal without powering down the system.
Q6: Can it be used in breakout mode?
A: Yes-supports 4×100G DR1 breakout via appropriate fiber splitters/cables, splitting to four 100G DR optics when host supports lane disabling.
Q7: Does it support diagnostic monitoring (DDM/DOM)?
A: Yes. Supports digital diagnostic monitoring via CMIS 4.0 / OSFP MSA, reporting lane power, temperature, voltage, and status over I²C.
Q8: What is the aggregate and per-lane data rate?
A: Operates at ~425 Gbps aggregate (4×106.25 Gbps PAM4 optical lanes and 8×53.125 Gbps PAM4 over electrical interface).
Q9: What is typical power consumption?
A: Up to 9-10 W (max ~12 W) in 400G mode; drops to ~5 W when running in dual-channel (200G) mode.
Q10: What is the supported operating temperature range?
A: Designed for 0 °C to 70 °C case temperature in standard modules. Storage temperature and extended variants may differ.
Q11: What standards does it comply with?
A: Complies with IEEE 802.3bs (400GBASE-DR4), IEEE 802.3ck, OSFP MSA, CMIS V4.0, 400GAUI-8, CEI-56G-VSR-PAM4 etc.
Q12: How to verify compatibility with my network device?
A: Ensure your switch/NIC supports OSFP optics, host-side FEC, and permits third-party optics. Confirm part numbers or compatibility lists for "OSFP-400G-DR4 Finned Top."
Q13: What applications is this module suited for?
A: Ideal for data center interconnect, spine-leaf or switch-to-switch links over SMF up to 500 m, and seamless breakout to 100G DR deployments. Commonly used in platforms requiring efficient heat dissipation.
Q14: What is the optical power budget per lane?
A: Typical transmit power: -2.9 to +4.0 dBm; receiver sensitivity: about -4.4 dBm, providing ~1.5 dB margin over 500 m SMF with KP4 FEC.
Q15: Are there industrial or extended-temperature versions available?
A: Primarily offered in commercial spec (0-70 °C). Industrial or extended-temperature finned-top variants may be available from select vendors but are less common.