Amazon.com: Cisco Console Cable 9-pin DB9 Female Serial RS232 Port to RJ45 Male Cat5 Ethernet LAN Rollover Console Cable Switch Cable Cisco(DB9P to RJ45 1.8M) : Electronics
Tripp Lite Cisco Console RJ-45 M F Rollover Cable Adapter, Blue, (N034-05N-BL)
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Tripp Lite Cisco Console Rollover Cable Adapter (M/F) - N034-05N-BL
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Tripp Lite 6ft Cisco Serial Console Port Rollover Cable RJ45 to DB9F 6' - serial cable - DB-9 to RJ-45 - 6 ft - P430-006 - Serial Cables - CDW.com