Product Overview
The 800G OSFP112DD SR8 transceiver is an advanced parallel-optics module designed for ultra-high-density data center links.
It supports 8×100 Gbps PAM4 channels in each direction, offering a total bandwidth of 800 Gbps over OM4 multimode fiber.
Based on the OSFP112 Double-Density (DD) platform, it delivers outstanding electrical performance, efficient heat dissipation, and full CMIS management compatibility.
This module is ideal for short-reach interconnects between switches, routers, and AI/ML clusters where bandwidth and density are critical.
Main Features
- 800 Gbps total bandwidth (8×100 Gbps lanes, PAM4 modulation)
- Supports IEEE 802.3db 800GBASE-SR8 optical interface
- 850 nm VCSEL laser and high-sensitivity PIN photodiodes
- Dual MTP/MPO-12 optical connectors
- Up to 100 m over OM4 multimode fiber (optimized for 50 m / 100 m applications)
- Low power consumption — typically ≤ 16 W
- Hot-pluggable OSFP112DD form factor
- Integrated digital diagnostics via CMIS v4/5
- Reliable operation in 0 °C ~ 70 °C case temperature range
- Industry-standard I²C management interface
- RoHS and IEC 60825-1 Class 1 laser compliant
Applications
- 800 Gigabit Ethernet short-reach links
- Spine-to-leaf and TOR connections in hyperscale data centers
- AI and HPC cluster interconnects
- InfiniBand NDR / 2×NDR parallel transmission
- Cloud and enterprise aggregation networks
Technical Highlights
|
Parameter
|
Description
|
|
Form Factor
|
OSFP112 Double Density
|
|
Optical Interface
|
Dual MPO-12 (SR8, 2×SR4 internal layout)
|
|
Transmission Rate
|
8 × 106.25 Gbps (PAM4)
|
|
Wavelength
|
850 nm
|
|
Modulation Format
|
PAM4
|
|
Fiber Type
|
OM4 / OM5 Multimode
|
|
Maximum Reach
|
50 m (OM4) / 100 m (OM4, typical)
|
|
TX Type
|
VCSEL array
|
|
RX Type
|
PIN photodiode array
|
|
Power Supply
|
3.3 V ± 5 %
|
|
Power Consumption
|
≤ 16 W (typical 14 W)
|
|
Case Operating Temperature
|
0 °C ~ 70 °C
|
|
FEC Requirement
|
RS-(544, 514) FEC on host
|
|
Management Interface
|
CMIS v4.0 / v5.0 over I²C
|
|
DDM / DOM
|
Supported (TX power, RX power, temp, voltage)
|
Optical Characteristics (Per Lane)
|
Parameter
|
Min
|
Typical
|
Max
|
Unit
|
|
Central Wavelength
|
840
|
850
|
860
|
nm
|
|
Average Launch Power
|
–4.6
|
—
|
+4.0
|
dBm
|
|
OMA (Outer Modulation Amplitude)
|
–2.6
|
—
|
+3.5
|
dBm
|
|
Extinction Ratio
|
2.5
|
—
|
—
|
dB
|
|
Transmitter Dispersion (TDECQ)
|
—
|
—
|
4.4
|
dB
|
|
Receiver Sensitivity (OMA)
|
—
|
—
|
–4.4 to –6.2
|
dBm
|
|
Receiver Overload
|
—
|
—
|
+4.0
|
dBm
|