noun
line bandwidth
Technical computing term referring to the bandwidth of a communication line.
この回線帯域では大容量のデータ転送は難しい。
With this line bandwidth, transferring large amounts of data is difficult.
帯域幅 is the more common general term for 'bandwidth', while 回線帯域 specifically refers to the bandwidth of a communication line.
Compound of 回線 (line, circuit) and 帯域 (bandwidth, frequency band).