4016032478836

This Direct Attach Cable (DAC) is designed for establishing direct 25 Gigabit connections between network equipment with SFP28 ports within data center and backbone environments. The cable features SFP28 connectors on both ends and utilizes a passive Twinax copper connection (AWG 30). The integrated SFP28 modules provide a direct electrical connection without separate transceivers. The cable is suitable for short-distance rack connections and complies with SFP28 MSA and SFF-8432 specifications. Specifications • Type Direct Attach Cable (DAC) • Transceiver type SFP28 DAC (passive) • Connector side A SFP28 • Connector side B SFP28 • Ethernet speed 25 Gigabit • Supported data rate up to 25.88 Gbps • Cable type Twinax copper cable • Wire gauge AWG 30 • Electrical interface 20-pin connection according to SFF-8432 • Management interface serial I²C • Supply voltage 3.3 V • Power consumption approx. 0.5 W • Hot-plug Yes • Temperature range 0 to 70 °C • Storage temperature −40 to 85 °C • Compliance SFP28 MSA, SFF-8432 Supported applications • 25G Ethernet • Data center switch interconnect • High-performance computing (HPC) • Telecom and data collection systems Compatible with Compatible with MSA-compliant SFP28 25G ports from, among others: • Cisco • Dell • HPE / Aruba • Juniper • Huawei • Arista • Extreme Networks • Brocade • Netgear • D-Link • Fortinet • IBM • Mellanox / NVIDIA • Ubiquiti • Zyxel • Alcatel-Lucent Enterprise • Supermicro • Lenovo • MikroTik • TP-Link (enterprise models) • Allnet • Edimax • Etherwan • Enterasys • Force10 • 3Com • Nortel • Riverstone • ZTE Explanation of terms • SFP28 Small Form-factor Pluggable 28; 25G interface with improved signal integrity compared to SFP+ • DAC Direct Attach Cable; fixed copper cable with integrated transceiver modules • Twinax shielded copper cable with two conductors for high data rates • AWG American Wire Gauge; indication of wire thickness • MSA (Multi-Source Agreement) industry standard for compatibility between manufacturers • SFF-8432 technical specification for SFP+/SFP28 electrical interfaces • I²C serial management interface for module identification and monitoring • Hot-plug ability to insert or remove the module without shutting down the system General explanation about DAC cables • DAC cables are used for short-distance connections within racks • Low latency and high signal integrity make them suitable for data center interconnects • Passive DAC contains no active electronics in the cable and is suitable for short distances • Plug-and-play installation without separate transceivers Ask a product question