Specs: DSU/CSU - HWIC, 64 Kbps
Specs: DSU/CSU, 2 Mbps
Specs: DSU/CSU, 1.544 Mbps
Specs: DSU/CSU - HWIC, 1.544 Mbps
Specs: DSU/CSU, 2.048 Mbps
Specs: DSU/CSU - WIC, 1.544 Mbps
Specs: DSU/CSU - Expansion slot, 1.544 Mbps, Retail
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