The Ciena NTK620AA is a compact, high-performance optical networking module designed for reliable, scalable data transport, making it an ideal choice for upgrading or expanding existing network infrastructures with cost-effective, used hardware.

The Ciena NTK615BA is a compact, high-performance optical networking module designed for reliable data transport, offering scalable bandwidth and seamless integration into existing Ciena platforms—ideal for cost-effective network expansion when purchasing used hardware.

The Ciena NTK614AA is a compact, high-performance optical transponder module designed for reliable, high-capacity data transport in dense wavelength-division multiplexing (DWDM) networks, making it an ideal choice for scalable, cost-effective upgrades in used network hardware deployments.