A Direct Attach Copper cable or DAC cable is a twinax copper cable used to connect ports to switches, routers, servers or data storage equipment for short transmission distance. It consists of a shielded twinax copper cable with pluggable connectors on either end such as SFP+, SFP28, QSFP28 and QSFP+.
Our Passive Direct Attach Cables are used in short reach, high density, high speed interconnect data centre applications. They are designed for networking, data storage and telecom systems where you need the highest possible network efficiency, low power consumption and low latency at an affordable price. Passive DAC cables have no electrical components built into the cable assembly and are most often used to connect equipment located within the same data rack with short transmission distance requirements, typically 1-2m. That said we do offer 0.5-10m lengths.
We recommend a Passive DAC is used for transmission of up to 7m and an Active DAC is suitable for 7-15m.
With our compatibility guarantee you can be sure we only sell products that meet or exceed the vendor specification with compliance to all MSA standards and protocols. Each product is uniquely serialised, and we proudly offer a lifetime warranty on all our products.
We can Customise to your requirements. Please contact us do discuss your requirements.

HPE® compatible
R4G19A HPE® Compatible Direct Attach Copper Cable 25GBase-CU SFP28 (Passive Twinax, 1m)
£49.00Unit price /UnavailableHPE® compatible
R5Z76A HPE® Compatible Direct Attach Copper Cable 200GBase-CU QSFP56 (Passive Twinax, 0.5m)
£117.00Unit price /UnavailableHPE® compatible
R5Z77A HPE® Compatible Direct Attach Copper Cable 200GBase-CU QSFP56 (Passive Twinax, 1m)
£129.00Unit price /UnavailableHPE® compatible
R5Z78A HPE® Compatible Direct Attach Copper Cable 200GBase-CU QSFP56 (Passive Twinax, 2m)
£153.00Unit price /UnavailableHPE® compatible
R5Z79A HPE® Compatible Direct Attach Copper Cable 200GBase-CU QSFP56 (Passive Twinax, 2.5m)
£177.00Unit price /UnavailableHPE® compatible
R5Z80A HPE® Compatible Direct Attach Copper Cable 200GBase-CU QSFP56 (Passive Twinax, 5m)
£224.00Unit price /UnavailableHPE® compatible
R5Z81A HPE® Compatible Direct Attach Copper Cable 200GBase-CU QSFP56 (Passive Twinax, 10m)
£307.00Unit price /UnavailableHPE® compatible
R5Z82A HPE® Compatible Direct Attach Copper Cable 200GBase-CU QSFP56 (Passive Twinax, 15m)
£396.00Unit price /UnavailableHPE® compatible
£291.00Unit price /UnavailableHPE® compatible
R8M44A HPE® Compatible Direct Attach Copper Cable 400GBase-CU QSFP-DD (Passive Twinax, 0.5m)
£218.00Unit price /UnavailableHPE® compatible
R8M45A HPE® Compatible Direct Attach Copper Cable 400GBase-CU QSFP-DD (Passive Twinax, 1m)
£231.00Unit price /UnavailableHPE® compatible
R8M46A HPE® Compatible Direct Attach Copper Cable 400GBase-CU QSFP-DD (Passive Twinax, 2m)
£291.00Unit price /UnavailableHPE® compatible
£305.00Unit price /UnavailableHPE® compatible
£365.00Unit price /UnavailableHPE Aruba® compatible
R8M59A HPE Aruba® Compatible Direct Attach Copper Cable QSFP28 100GBase-CU (Passive Twinax, 0.5m)
£110.00Unit price /UnavailableHPE® compatible
R9D19A HPE® Compatible Direct Attach Copper Cable 10GBase-CU SFP+ (Passive Twinax, 1m)
£27.00Unit price /UnavailableHPE Aruba® compatible
R9D20A HPE Aruba® Compatible Direct Attach Copper Cable 10GBase-CU SFP+ (Passive Twinax, 3m)
£53.00Unit price /UnavailableHPE Aruba® compatible
R9F74A HPE Aruba® Compatible Direct Attach Copper Cable QSFP28 100GBase-CU (Passive Twinax, 3m)
£120.00Unit price /UnavailableHPE Aruba® compatible
R9F77A HPE Aruba® Compatible Direct Attach Copper Cable QSFP28 100GBase-CU (Passive Twinax, 1m)
£110.00Unit price /UnavailableHPE Aruba® compatible
R9F78A HPE Aruba® Compatible Direct Attach Copper Cable QSFP28 100GBase-CU (Passive Twinax, 5m)
£167.00Unit price /UnavailableHPE Aruba® compatible
R9F83A HPE Aruba® Compatible Direct Attach Copper Cable 10GBase-CU SFP+ (Passive Twinax, 1m)
£45.00Unit price /UnavailableHPE Aruba® compatible
R9F84A HPE Aruba® Compatible Direct Attach Copper Cable 10GBase-CU SFP+ (Passive Twinax, 3m)
£53.00Unit price /UnavailableHPE® compatible
R9F91A HPE® Compatible Direct Attach Copper Cable 25GBase-CU SFP28 (Passive Twinax, 0.65m)
£58.00Unit price /UnavailableHPE Aruba® compatible
R9F92A HPE Aruba® Compatible Direct Attach Copper Cable 25GBase-CU SFP28 (Passive Twinax, 3m)
£95.00Unit price /Unavailable
