Fiber Mall

  QSFP28 ZR4 is the best choice for 100G long-haul DCI(Data Center Interconnect). The transmission distance of 100G QSFP28 ZR4 optical module can reach 80 km by accessing single-mode fiber, with built-in 4-channel cooled EML laser and PIN detector, using 4-way 25G NRZ wavelength division multiplexing technology (LWDM4), the transmission rate can reach 100Gpbs, mainly used in 100G Ethernet, data center, telecom and other scenarios. In addition to the 100G QSFP28 ZR4 optical transceiver, the 100G ultra-long-haul transmission solution also includes the 100G DCO coherent optical module, which is available in both CFP and CFP2 package types, with the CFP2 DCO offering greater flexibility and supporting higher panel density compared to the CFP DCO. 100G QSFP28 ZR4 optical transceiver CFP/CFP2 coherent optical modules use coherent technology, but coherent technology is typically used for long-haul metro optical transmission and is not suitable for use in data centers. Coherent technology uses

  Q SFP 28 optical module uses the most advanced 100 G  transmission technology to provide the connection between rack switch and core network for data center operators. Compared with the previously released 100 G  CFP, CFP 2 and CFP 4 optical modules, QSFP 28 has the advantages of high density and small volume, which means that the  QSFP 28 optical module has a higher port density on the switch, so  obviously, this type of optical transceiver is very popular in the market.     Fiber Mall QSFP28-100G-ER4  Transceiver   The power consumption of the QSFP28 optical module during working operation is usually no more than 3.5W, and it can be directly upgraded from 25G network to 100G network. The power consumption of other 100G optical modules (CFP, CFP2, CFP4) is usually between 6W and 24W, so the power consumption of the QSFP28 optical module is much lower. Many brands have produced QSFP28 optical modules, but the product models of each brand are different, you can refer to the following

100G optical module can achieve higher density network deployment, lower power consumption and lower cost. The main types of 100G optical modules are QSFP28, CFP and CXP.   1.  100G QSFP28 Optical Transceiver   The 100G QSFP28 optical module is the mainstream 100G optical module  in the market today, and the package form is QSFP28 (Quad Small Form Factor Pluggable) . Because of its advantages of small size, high port density and low power consumption, it is loved by the majority of manufacturers. The transmission wavelength of 100G QSFP28 optical module is 1310nm, and its transmission distance can reach 2km with a single-mode 12 core MTP (MPO) connector. The size of QSFP28 transceiver is smaller than other 100G modules. If you want to deploy high-density and high-speed network, 100G QSFP28 will be a good choice. Plus, it is available in a wide range of types, such as CWDM4 , QSFP28 ER4 Lite , QSFP28 PSM4 , and QSFP100G-SM-SR .     Fiber Mall 100G QSFP28 PSM4 Transceiver 2.  100G CFP Op

     “QSFP” is short for Quad (4-channel) Small Form Factor Pluggable, which refers to the package type; the number “28” indicates that the maximum transmission rate of each channel is 28Gbps.    The main types of 100G QSFP28 are SR4/LR4/ER4/ZR4/SRBDPSM4/CWDM4. It's tricky to  select a 100G QSFP28 optical module because those types have many similarities, such as  cwdm4 vs lr4 .  Therefore, t he need for transmission distance is considered first, then when the transceivers are at the same transmission distance, the final selection is based on fiber deployment and specific other needs.