Nokia 7x50 SR OS 20.10.R4 for 7750 SR-7, 7750 SR-12, 7750 SR-12e, 7750 SR-1e, 7750 SR-2e, 7750 SR-3e, 7750 SR-a4, and 7750 SR-a8
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7750SR 7750SR-1S 3RU System capacity 9.6 Tb/s, View 7750SR-1S, NOKIA Product Details from Shanghai Dewu Information Technology Co., Ltd. on Alibaba.com
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