400GBASE-SR8 QSFP MMF 850nm 100m DDM Optical Transceiver Module
The 400GBASE-SR8 QSFP MMF 850 nm 100 m DDM optical transceiver module delivers ultra-high-speed, reliable connectivity for modern data centers and enterprise networks. Engineered with eight parallel 50 Gbps lanes over OM4 multimode fiber, it supports 400 Gbps aggregate bandwidth up to 100 meters, leveraging advanced VCSEL technology and PAM4 modulation for exceptional signal integrity.
Its hot-pluggable QSFP form factor and integrated digital diagnostics monitoring (DDM) simplify installation and real-time performance tracking, while low power consumption (<10 W) helps optimize energy efficiency. Fully compliant with IEEE 802.3cm and QSFP-SR8 MSA standards, this transceiver ensures seamless interoperability and future-proof scalability for high-density, short-reach network architectures.
| Part Number | GL4H-OSMM85SR8C | Tx Power (dBm) | -6.5~4 |
| Product | 400G OSFP SR8 | Rx Power (dBm) | -8.4 |
| Max Data Rate | 425Gbps | Distance | 100m OM4 |
| Wavelength | 850nm | Connector | MPO-16/APC |
| Laser Type (TX/RX) | VCSEL/PIN | Temp | 0~70°C |
- Short-reach 400G Ethernet links
- Cloud Infrastructure
- Server and Storage Connectivity
- InfiniBand Applications
- Supports 400Gbps data transmission over 8 parallel multimode fibers
- Utilizes 850nm VCSEL technology with PAM4 modulation.
- Hot-pluggable OSFP form factor for ease of integration.
- Maximum reach of 100 meters over OM4 multimode fiber.
- Low power consumption, enhancing energy efficiency.
FAQ About 400GBASE-SR8 QSFP Optical Transceiver
A VCSEL-based 400G QSFP SR8 transceiver for 100 m links leverages PAM4 modulation and 850 nm VCSEL arrays to deliver error-free 400 Gbps over OM4 multimode fiber, maintaining BERs ≤ 10⁻¹² even in high-density, electrically noisy rack environments.
We can accept small Absolutely. The IEEE 802.3cm compliant 400G QSFP SR8 MMF transceiver adheres to industry-standard mechanical, electrical, and protocol specifications, guaranteeing interoperability with all leading switch and router platforms that support SR8 interfaces.
The low-power 400GBASE-SR8 QSFP PAM4 transceiver module consumes under 10 W per port, reducing rack-level energy usage by up to 25 % compared to traditional NRZ modules—helping data centers lower cooling demands and operational costs.
Yes, the hot-pluggable 400GBASE SR8 QSFP optical transceiver supports live insertion and removal. Its QSFP form factor and built-in low-power design (< 10 W) ensure seamless swaps or upgrades in live environments with minimal impact on adjacent ports.
The 400G QSFP-SR8 multimode fiber transceiver with DDM features integrated digital diagnostics monitoring that continuously reports real-time temperature, laser bias current, and optical power levels—enabling proactive maintenance and minimizing unexpected network downtime.
The 400GBASE-SR8 QSFP MMF 850 nm 100 m DDM optical transceiver is ideal for short-reach, high-density data center interconnects, including switch-to-switch, server-to-switch links, and top-of-rack aggregation, where 400 Gbps bandwidth and reliable digital diagnostics monitoring are critical.
