Sourcelight SFP Optical Transceiver (small form factor pluggable) are hot-swappable in industry-standard cages and connectors, and offer high-speed performance in a compact package. SFP is used for data rates up to 4.25 Gb/s and DWDM. SFP transceivers is interchangeable and can be used in the same cages as SFP transceivers. The electrical interface to the host board is a serial interface.
| Picture | Model | Package | Data Rate(G) | Wavelength | Connector | Reach | Temp | DDM | Fiber Type |
 | SLS-1531-02-X | SFP | 155M | 1310nm | Duplex LC | 2km | 0-70 | YES/NO | MMF |
| SLS-1531-20-X | SFP | 155M | 1310nm | Duplex LC | 20km | 0-70 | YES/NO | SMF |
| SLS-1531-40-X | SFP | 155M | 1310nm | Duplex LC | 40km | 0-70 | YES/NO | SMF |
| SLS-1555-80-X | SFP | 155M | 1550nm | Duplex LC | 80km | 0-70 | YES/NO | SMF |
| SLS-1285-S5-D | SFP | 1.25G | 850nm | Duplex LC | 550m | 0-70 | YES | MMF |
| SLS-1231-10-D | SFP | 1.25G | 1310nm | Duplex LC | 10km | 0-70 | YES | SMF |
| SLS-1231-20-X | SFP | 1.25G | 1310nm | Duplex LC | 20km | 0-70 | YES/NO | SMF |
| SLS-1231-40-X | SFP | 1.25G | 1310nm | Duplex LC | 40km | 0-70 | YES/NO | SMF |
| SLS-1255-80-X | SFP | 1.25G | 1550nm | Duplex LC | 80km | 0-70 | YES/NO | SMF |
| SLS-1255-120-D | SFP | 1.25G | 1550nm | Duplex LC | 120km | 0-70 | YES | SMF |
| SLS-2585-S3-X | SFP | 2.5G | 850nm | Duplex LC | 300m | 0-70 | YES/NO | MMF |
| SLS-2531-02-X | SFP | 2.5G | 1310nm | Duplex LC | 2km | 0-70 | YES/NO | MMF |
| SLS-2531-20-X | SFP | 2.5G | 1310nm | Duplex LC | 20km | 0-70 | YES/NO | SMF |
| SLS-2531-40-X | SFP | 2.5G | 1310nm | Duplex LC | 40km | 0-70 | YES/NO | SMF |
| SLS-2555-80-D | SFP | 2.5G | 1550nm | Duplex LC | 80km | 0-70 | YES | SMF |
| SLS-4285-S3-D | SFP | 4.25G | 850nm | Duplex LC | 300m | 0-70 | YES | MMF |
| SLS-4231-10-D | SFP | 4.25G | 1310nm | Duplex LC | 10km | 0-70 | YES | SMF |
| SLS-4231-30-D | SFP | 4.25G | 1310nm | Duplex LC | 30km | 0-70 | YES | SMF |
 | SLB-1535X-20-X | BIDI SFP | 155M | Tx1310/Rx1550 | Simplex LC/SC | 20km | 0-70 | YES/NO | SMF |
| SLB-1553X-20-X | BIDI SFP | 155M | Tx1550/Rx1310 | Simplex LC/SC | 20Km | 0-70 | YES/NO | SMF |
| SLB-1535X-40-X | BIDI SFP | 155M | Tx1310/Rx1550 | Simplex LC/SC | 40km | 0-70 | YES/NO | SMF |
| SLB-1553X-40-X | BIDI SFP | 155M | Tx1550/Rx1310 | Simplex LC/SC | 40Km | 0-70 | YES/NO | SMF |
| SLB-1235X-03-X | BIDI SFP | 1.25 | Tx1310/Rx1550 | Simplex LC/SC | 3km | 0-70 | YES/NO | SMF |
| SLB-1253X-03-X | BIDI SFP | 1.25 | Tx1550/Rx1310 | Simplex LC/SC | 3km | 0-70 | YES/NO | SMF |
| SLB-1235X-20-X | BIDI SFP | 1.25 | Tx1310/Rx1550 | Simplex LC/SC | 20km | 0-70 | YES/NO | SMF |
| SLB-1253X-20-X | BIDI SFP | 1.25 | Tx1550/Rx1310 | Simplex LC/SC | 20Km | 0-70 | YES/NO | SMF |
| SLB-1234X-20-X | BIDI SFP | 1.25 | Tx1310/Rx1490 | Simplex LC/SC | 20km | 0-70 | YES/NO | SMF |
| SLB-1243X-20-X | BIDI SFP | 1.25 | Tx1490/Rx1310 | Simplex LC/SC | 20Km | 0-70 | YES/NO | SMF |
| SLB-1235X-40-X | BIDI SFP | 1.25 | Tx1310/Rx1550 | Simplex LC/SC | 40km | 0-70 | YES/NO | SMF |
| SLB-1253X-40-X | BIDI SFP | 1.25 | Tx1550/Rx1310 | Simplex LC/SC | 40Km | 0-70 | YES/NO | SMF |
| SLB-1234X-40-X | BIDI SFP | 1.25 | Tx1310/Rx1490 | Simplex LC/SC | 40km | 0-70 | YES/NO | SMF |
| SLB-1243X-40-X | BIDI SFP | 1.25 | Tx1490/Rx1310 | Simplex LC/SC | 40Km | 0-70 | YES/NO | SMF |
| SLB-1245X-80-D | BIDI SFP | 1.25 | Tx1490/Rx1550 | Simplex LC/SC | 80km | 0-70 | YES | SMF |
| SLB-1254X-80-D | BIDI SFP | 1.25 | Tx1550/Rx1490 | Simplex LC/SC | 80Km | 0-70 | YES | SMF |
| SLB-1245L-120-D | BIDI SFP | 1.25 | Tx1490/Rx1550 | Simplex LC | 120km | 0-70 | YES | SMF |
| SLB-1254L-120-D | BIDI SFP | 1.25 | Tx1550/Rx1490 | Simplex LC | 120Km | 0-70 | YES | SMF |
| SLB-2535L-20-D | BIDI SFP | 2.5 | Tx1310/Rx1550 | Simplex LC | 20km | 0-70 | YES | SMF |
| SLB-2553L-20-D | BIDI SFP | 2.5 | Tx1550/Rx1310 | Simplex LC | 20Km | 0-70 | YES | SMF |
| SLB-2545L-80-D | BIDI SFP | 2.5 | Tx1490/Rx1550 | Simplex LC | 80km | 0-70 | YES | SMF |
| SLB-2554L-80-D | BIDI SFP | 2.5 | Tx1550/Rx1490 | Simplex LC | 80Km | 0-70 | YES | SMF |
 | SLCB-1243L-20-D | CSFP | 1.25G | Tx1490/Rx1310 | Duplex LC | 20km | 0-70 | YES | SMF |
| SLCB-2543L-20-D | CSFP | 2.5G | Tx1490/Rx1310 | Duplex LC | 20km | 0-70 | YES | SMF |
 | SLSC-12XX-40-D | CWDM SFP | 1.25 | 1270-1610 | Duplex LC | 40km | 0-70 | YES | SMF |
| SLSC-12XX-80-D | CWDM SFP | 1.25 | 1270-1610 | Duplex LC | 80km | 0-70 | YES | SMF |
| SLSC-12XX-120-D | CWDM SFP | 1.25 | 1270-1610 | Duplex LC | 120km | 0-70 | YES | SMF |
| SLSC-25XX-40-D | CWDM SFP | 2.5 | 1270-1610 | Duplex LC | 40km | 0-70 | YES | SMF |
| SLSC-25XX-80-D | CWDM SFP | 2.5 | 1470-1610 | Duplex LC | 80km | 0-70 | YES | SMF |
 | SLSD-12XX-80-D | DWDM SFP | 1.25 | ITU-U CH17-61 | Duplex LC | 80km | 0-70 | YES | SMF |
| SLSD-12XX-120-D | DWDM SFP | 1.25 | ITU-U CH17-61 | Duplex LC | 120KM | 0-70 | YES | SMF |
| SLSD-25XX-80-D | DWDM SFP | 2.5 | ITU-U CH17-61 | Duplex LC | 80km | 0-70 | YES | SMF |
| SLSD-25XX-120-D | DWDM SFP | 2.5 | ITU-U CH17-61 | Duplex LC | 120KM | 0-70 | YES | SMF |
 | SLSG-1531-02-D | SGMII SFP | 125Mbps | 1310nm | Duplex LC | 2km | 0-70 | YES | MMF |
| SLSG-1531-10-D | SGMII SFP | 125Mbps | 1310nm | Duplex LC | 10KM | 0-70 | YES | SMF |
 | SL-SFP-3T | SFP-T | 1000M | N/A | RJ45 | 100M | 0-70 | NO | N/A |
| SL-SFP-1T | SFP-T | 10/100/1000 | N/A | RJ45 | 100M | 0-70 | NO | N/A |
| SL-SFP-2T | SFP-T | 10/100M | N/A | RJ45 | 100M | 0-70 | NO | N/A |
 | SLGP-2143-B | GPON OLT B+ | 2.5G/1.25G | TX1490/RX1310 | Simplex SC | 20KM | 0-70 | YES | SMF |
| SLGP-2143-C | GPON OLT C+ | 2.5G/1.25G | TX1490/RX1310 | Simplex SC | 20KM | 0-70 | YES | SMF |
 | SLGU-1234-B | GPON ONU | 1.25G/2.5G | TX1310/RX1490 | Simplex SC | 20KM | 0-70 | YES | SMF |
 | SLEP-1143-P | EPON OLT | 1.25G/1.25G | TX1490/RX1310 | Simplex SC | 20KM | 0-70 | YES | SMF |
 | SLEU-1134-P | EPON ONU | 1.25G/1.25G | TX1310/RX1490 | Simplex SC | 20KM | 0-70 | YES | SMF |
