The Digitus DN-81223 is a 3-meter long SFP+ Direct Attach Copper cable designed for high-speed network backbone connections between switches. This black cable supports multiple data transmission protocols, including 10G Ethernet at 10.21 Gbps, 10G Fiber Channel at 10.52 Gbps, 8G Fiber Channel at 8.5 Gbps, 4G Fiber Channel at 4.25 Gbps, 2G Fiber Channel at 2.125 Gbps, 1G Fiber Channel at 1.0625 Gbps, Gigabit Ethernet at 1.25 Gbps, CPRI options 2, 3, 5, 6, 7, 8, as well as OBSAI RP3 x 2, RP3 x 4, RP x 8 standards. With a length of 300 cm, this cable provides reliable connectivity for data centers and enterprise network environments where consistent performance is crucial. The construction uses durable materials that ensure signal integrity across the entire cable length while maintaining compatibility with SFP+ ports from leading switch manufacturers. This passive copper cable eliminates the need for separate transceivers and offers a cost-effective solution for short 10-gigabit connections. The black color provides a professional appearance that integrates well with standard networking equipment. Proper installation requires compatible SFP+ ports on both connected devices, and the cable is designed for use in temperature-controlled environments typical of data centers and server rooms. For optimal performance, proper cable routing should be ensured to avoid sharp bends or excessive tension that could impair signal quality. This product represents a successor model in the Digitus network cable series, maintaining the brand's focus on reliable electrical cabling solutions for professional infrastructure applications.