QSFP-40G-ER4-AL
42Gb/s data transmission speed, using 4*10.31G DFB laser transmitter and APD photoelectric detector, single-mode fiber transmission up to 40Km, hot-swappable SFP interface, LC pluggable optical interface, low power consumption, metal shell for reducing electromagnetic interference, in line with ROSA lead-free standard, single +3.3V power supply, support digital diagnostic monitoring function, SFF-8472 protocol
| Compatible Model Name | SFP-40G-ER4-AL | Vendor Name | CFTX |
| Form Factor | SFP28 | Data Rate | 44.6Gbps |
| Wavelength | 1310nm | Max Transmission Distance | 40km |
| Connector | Duplex-LC | Media | Single mode-SMF |
| Laser Type | DFB | Receiver | APO |
| DDM/DOM | Yes | Temperature Range | 0~70°C （Commercial grade） 32~158℃（Industrial grade） |
| Transmitter power | -2.7~+4.5dBm | Receiver sensitivity | <-21dBm |
| Power Consumption | 3.5W | Extinction ratio | 5.5dB |
| Modulation | NRZ | CDR | 无 |
| Transmission dispersion | 2.6dB | Power Budget | 18.5dB |
| Packaging Technology | BOX | FEC Function | Yes |
| Protocols | MSA, CPRI, eCPRI | Apply | 40GBASE Ethernet, Data Center, OTU3e1，OTU3e2 |
| Compatible Brands | (Cisco)、Arista 、HUAWEI、ZTE、DLL、Intel、H3C、RuiJie、IBM、HP…… |
