SFP-H10GB-CU4M=

The SFP-H10GB-CU4M is a passive twinax copper cable, 4 m long, with an SFP+ connector permanently attached at each end. Laying the cable in before the equipment is fully racked leaves the final connection for last and saves rework. Plan the route before ordering, because a fixed-length cable cannot be shortened or extended later. Choose it for rows of cabinets where the cable must leave one rack, cross a short gap and enter the next. Handle it by the connector bodies, keep the bend radius generous, and avoid tight ties that squeeze the jacket. Because it is built to a set length, stock planning is by length, so a rack plan listing each link helps ordering. With no active electronics it draws very little power, about 0.1 W per the data sheet, and reports no digital diagnostics. It carries a 10 Gigabit Ethernet link between two SFP+ ports and needs no separate transceivers. Cisco lists the 4 m and 5 m passive lengths on thicker 24 or 26 AWG twinax, which is stiffer in the rack.