| SFP-21FC | 125Mbps SFP MM/ LC2芯/ 2km/ 1310nm |
| SFP-21FC(SM-20) | 125Mbps SFP SM/ LC2芯/ 20km/ 1310nm |
| SFP-21FC(SM-40) | 125Mbps SFP SM/ LC2芯/ 40km/ 1310nm |
| SFP-21W2A(SM-20) | 125Mbps SFP SM/ LC1芯WDM/ 20km/ TX:1310nm/RX:1550nm SFP-21W2B(SM-20)と対向 |
| SFP-21W2B(SM-20) | 125Mbps SFP SM/ LC1芯WDM/ 20km/ TX:1550nm/RX:1310nm SFP-21W2A(SM-20)と対向 |
| SFP-21W2A(SM-40) | 125Mbps SFP SM/ LC1芯WDM/ 40km/ TX:1310nm/RX:1550nm SFP-21W2B(SM-40)と対向 |
| SFP-21W2B(SM-40) | 125Mbps SFP SM/ LC1芯WDM/ 40km/ TX:1550nm/RX:1310nm SFP-21W2A(SM-40)と対向 |
| SFP-21W2A(SM-60) | 125Mbps SFP SM/ LC1芯WDM/ 60km/ TX:1310nm/RX:1550nm SFP-21W2B(SM-60)と対向 |
| SFP-21W2B(SM-60) | 125Mbps SFP SM/ LC1芯WDM/ 60km/ TX:1550nm/RX:1310nm SFP-21W2A(SM-60)と対向 |
| SFP-21W2A(SM-80) | 125Mbps SFP SM/ LC1芯WDM/ 80km/ TX:1310nm/RX:1550nm SFP-21W2B(SM-80)と対向 |
| SFP-21W2B(SM-80) | 125Mbps SFP SM/ LC1芯WDM/ 80km/ TX:1550nm/RX:1310nm SFP-21W2A(SM-80)と対向 |
