QSFP28-DD, QSFP56-DD is addressing the technical challenges of achieving a double-density high speed 200G/400G interface, electrical interfaces will employ eight lanes that operate up to 25 Gbps NRZ modulation or 50 Gbps PAM4 modulation, providing solutions up to 200 Gbps or 400 Gbps aggregate. QSFP-DD can enable up to 14.4 Tbps aggregate bandwidth in a 1U switch slot.
Features :
- Expands on the QSFP28 pluggable form factor, a widely adopted four-lane electrical interface
- 2×1 stacked integrated cage / connector
- Cage design optimizations and module case optimizations enable thermal support of at least 7w per module
- QSFP-DD electrical interfaces will employ eight lanes that operate up to 25 Gbps NRZ modulation or 50 Gbps PAM4 modulation, providing solutions up to 200 Gbps or 400 Gbps aggregate
- QSFP-DD can enable up to 14.4 Tbps aggregate bandwidth in a single switch slot
Benefit :
- By quadrupling aggregate switch bandwidth while maintaining port density, QSFP-DD will support continuing growth in network bandwidth demand and datacenter traffic
- Systems designed with QSFP-DD modules will be backwards compatible, allowing them to support existing QSFP modules and provide flexibility for end users and system designers
| Part Number | Data Rate | Wavelength (nm) | Source | Avg.Launch Power (dBm) | Avg.Rx Power (dBm) | Fiber Type | Interface Connector | Reach |
| 400G OSFP | ||||||||
| CTF-OSFP-SR8 | 400G | 850 | VCSEL+PIN | -6~4 | -7.9~4 | MMF | MTP/MPO | 100m |
| CTF-OSFP-FR4 | 400G | 1270~1310 | EML+PIN | -3.3~3.5 | -7.3~3.5 | SMF | LC | 2km |
| CTF-OSFP-2x-FR4 | 400G | 1270~1310 | EML+PIN | -4.2~4.7 | -8.2~4.7 | SMF | LC | 2km |
| CTF-OSFP-DR4 | 400G | 1310 | EML+PIN | -2.9~4 | -5.9~4 | SMF | MPO/MTP | 500m |
| CTF-OSFP-DR4+ | 400G | 1310 | EML+PIN | -2.4~4 | -6.4~4.5 | SMF | MPO/MTP | 2km |
| CTF-OSFP-LR4 | 400G | 1270~1310 | EML+PIN | -1.4~4.5 | -7.7~4.5 | SMF | LC | 10km |
| 200G QSFP-DD | ||||||||
| CTF-QSFP-DD-SR8-200 | 200G | 850 | VCSEL+PIN | -8.4~2.4 | -9.5~2.4 | MMF | MPO/MTP | 100m |
| CTF-QSFP-DD-PSM8-200 | 200G | 1310 | DML+PIN | -6~2 | -7.9~4 | SMF | MPO/MTP | 2km |
| CTF-QSFP-DD-LR8-200 | 200G | 1310 | DML+PIN | -4.3~4.5 | -8.2~4.7 | SMF | LC | 10km |
| 400G QSFP-DD | ||||||||
| CTF-QSFP-DD-SR8-400 | 400G | 850 | VCSEL+PIN | -6~4 | -7.9~4 | MMF | MPO/MTP | 100km |
| CTF-QSFP-DD-PSM8-400 | 400G | 1310 | EML+PIN | -3.3~3.5 | -7.3~3.5 | SMF | MPO/MTP | 2km |
| CTF-QSFP-DD-LR8-400 | 400G | 1310 | EML+PIN | -2.8~5.3 | -6.4~4.5 | SMF | LC | 10km |
| CTF-QSFP-DD-DR4-400 | 400G | 1310 | EML+PIN | -2.9~4 | -5.9~4 | MMF | MPO/MTP | 500m |
| CTF-QSFP-DD-DR4+-400 | 400G | 1310 | EML+PIN | -2.4~4 | -6.4~4.5 | SMF | MPO/MTP | 2km |
| CTF-QSFP-DD-FR4-400 | 400G | 1270~1310 | EML+PIN | -3.3~3.5 | -7.3~3.5 | SMF | LC | 2km |
| CTF-QSFP-DD-LR4-400 | 400G | 1270~1310 | EML+PIN | -1.4~4.5 | -7.7~4.5 | SMF | LC | 10km |
| CTF-QSFP-DD-ER4-400 | 400G | 1270~1310 | APD+PIN | 0.4~6.5 | -16.5~-2.5 | SMF | LC | 40km |
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