ATOP 25G Tunable DWDM is a 48 C-band channel (“wide-band”), auto-tuning optical transceiver equipped with a EML tuning laser. This transceiver allows full band, auto-tuning within 4 mins, supporting a data link up to 15km distance via single-mode fiber. With a wide tuning range and automatic tuning, this product is therefore the first choice for those operating a large DWDM network with multiple nodes and dynamic network demands. It not only enables flexible network management by supporting bandwidth changes as needed in Enterprise or Metro networks but also delivers significant long-term cost savings by reducing on-hand network inventory and simplifying spare parts stocking.