An SFP, or Small Form-factor Pluggable, is a compact transceiver used to provide cost-effective, instant fibre (or copper) connectivity to network devices, from Ethernet switches to routers, firewalls and NIC cards. Which SFP transceiver you choose depends on the application, cable type, required range for the network and the desired data transmission rate.
Black Box offers a full range of SFP, SFP+ and QSFP28 transceivers, all of which feature extended diagnostics. Our optical transceivers are designed for use with Emerald™ IP switches, industrial Ethernet switches, media converters and console servers, and most 3rd party equipment that supports SFP transceivers.
| Type | Speed | Transmission medium | Wavelength | Distance | Connector | Operating temperature | Item # |
|---|---|---|---|---|---|---|---|
| SFP | 155 Mbps | multimode fiber | 850 nm | 2 km | LC duplex | -40° to +85°C | LFP401 |
| SFP | 155 Mbps | multimode fiber | 1300 nm | 2 km | LC duplex | -40° to +85°C | LFP402 |
| SFP | 155 Mbps | single-mode fiber | 1310 nm | 30 km | LC duplex | -40° to +85°C | LFP403 |
| SFP | 1.25 Gbps | multimode fiber | 850 nm | 550 m | LC duplex | 0° to 70°C | LFP441 |
| SFP | 1.25 Gbps | multimode fiber | 850 nm | 550 m | LC duplex | -40° to +85°C | LFP411 |
| SFP | 1.25 Gbps | multimode fiber | 1300 nm | 2 km | LC duplex | -40° to +85°C | LFP412 |
| SFP | 1.25 Gbps | single-mode fiber | 1310 nm | 10 km | LC duplex | -40° to +85°C | LFP413 |
| SFP | 1.25 Gbps | single-mode fiber | 1310 nm | 20 km | LC duplex | 0° to 70°C | LFP442 |
| SFP | 1.25 Gbps | single-mode fiber | 1310 nm | 30 km | LC duplex | -40° to +85°C | LFP414 |
| SFP | 1.25 Gbps | single-mode fiber | 1550nm TX, 1310nm RX | 10 km | LC simplex | -40° to +85°C | LFP420 |
| SFP | 1.25 Gbps | single-mode fiber | 1310nm TX, 1550nm RX | 10 km | LC simplex | -40° to +85°C | LFP421 |
| SFP SerDes (1) | 1.25 Gbps | copper | n/a | 100 m | RJ-45 | -40° to +85°C | LFP415 |
| SFP SGMII (2) | 1.25 Gbps | copper | n/a | 100 m | RJ-45 | 0° to 70°C | LFP443 |
| SFP SGMII (2) | 10/100/1000 Mbps | copper | n/a | 100 m | RJ-45 | -40° to +85°C | LFP416 |
| SFP+ | 10 Gbps | multimode fiber | 850 nm | 300 m | LC duplex | 0° to 70°C | LSP421 LSP441 |
| SFP+ | 10 Gbps | single-mode fiber | 1310 nm | 10 km | LC duplex | 0° to 70°C | LSP422 |
| SFP+ | 10 Gbps | single-mode fiber | 1310 nm | 20 km | LC duplex | 0° to 70°C | LSP442 |
| SFP+ | 10 Gbps | copper | n/a | 30 m | RJ-45 | 0° to 60°C | LSP443 |
| QSFP+ | 40 Gbps | multimode fiber | 850 nm | 100 m (OM3), 150 m (OM4) | MPO | 0° to 70°C | QSFP541 |
| QSFP28 | 100 Gbps | multimode fiber | 850 nm | 70 m (OM3), 100 m (OM4) | MPO | 0° to 70°C | QSFP441-R2 |
| QSFP28 | 100 Gbps | single-mode fiber | WDM (3) | 10 km | LC duplex | 0° to 70°C | QSFP442 |
(1) Compatible with devices with a SerDes cage that support 1000 Mbps.
(2) Compatible with devices with a SGMII interface that support 10/100/1000 Mbps.
(3) The WDM (or Wavelength-Division Multiplexing) technique enables the use of multiple
light wavelengths to send data over the same medium. In this case: 1295.56, 1300.05, 1304.58 and 1309.14 nm.
Besides basic link characteristics such as SFP type, length of fiber link, wavelength and bit rate, all Black Box SFP transceivers feature extended diagnostics. This enables SFP transceivers to report information such as temperature, TX and RX power, voltage and bias current.
On our SFP transceiver product pages you will find words like hot-swappable and hot-pluggable while reading the specifications. Why does an SFP transceiver have such a specification?
Hot-swappable means that the SFP transceiver can be removed and replaced by another transceiver without shutting down the system or without significant system downtime. If a new SFP transceiver can be added but cannot be removed without some kind of interference, we call it hot-pluggable.
