100G QSFP28 to 4X SFP+ 25G DAC Breakout Direct Attach Copper Cable for Fiber Optic Transceiver/Fiber Optic Network Card,Computer Room,5M/16.4FT 100GBASE-CR4 1-to-4 Passive Twinax Cable
208.40 CAD
Data-center cross-rack fan-out linking one 100G QSFP28 port to four 25G servers or NICs over a 5m passive copper run.
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About this product
Key features
- 【High Speed 100G to 4x25G Breakout Functionality】The 100G QSFP28 to 4x25G SFP28 Direct Attach Copper Cable converts a single 100G QSFP28 port into four 25G SFP28 ports, delivering a stable 25Gbps per channel transmission speed with minimal signal loss,enabling seamless connectivity between 100GbE switches and 25GbE servers/network devices without active components
- 【Superior Passive Design with Low Power Consumption】The 100G QSFP28 to 25G SFP28 direct attach cable is cost-effective,energy-saving solution with no power requirements.Achieve ultra-low power consumption (≤0.1W).Supports data rates up to 25Gbps per channel (100Gbps aggregate) in short distance，ideal for rack-to-rack or intra-rack connections
- 【High Quality 30AWG Twinax Cable for Durability】The 100G QSFP28 DAC is constructed with 30AWG high-purity oxygen-free copper core and a triple-layer shield (aluminum foil + metal wire braid + ground layer), the power cable effectively resists EMI,EMC and RFI in dense wire environment. The reinforced LSZH outer sheath has excellent wear resistance and tensile strength, with a minimum bending radius of 20mm, make it easy to route in narrow cabinet spaces without affecting signal transmission
- 【Advantage of Direct Attach Copper Cable】The 100G QSFP28 to 25G SFP28 direct attach copper cable compare to QSFP+/SFP+ transceiver/fiber optic cable pairs and OAC:no power requirement,no active components,low power consumption,save power and save space,good heat dissipation,good stability, cost savings
- 【Strict quality testing and wide compatible with brands devices】Each passive stack cable undergoes strict factory testing (signal integrity, insertion loss, and return loss tests) to ensure long-term reliability.The DAC direct attach copper compatible with H3C/Intel/Cisco/Juniper/Ubiquiti/Fortinet，more other brands
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Specifications
- Type
- 100G QSFP28 to 4x 25G SFP+ DAC breakout cable
- Standard
- 100GBASE-CR4 1-to-4 breakout
- Connectors
- 1x QSFP28 to 4x SFP28
- Application
- Switch-to-server / NIC fan-out, data center / computer room
- Cable Length
- 5m (16.4 ft)
- Construction
- Passive twinax direct attach copper
Pros
- ✓Splits a single 100G port into four 25G links for dense connectivity
- ✓5m reach allows cross-rack or row connections
- ✓Passive copper means no power draw and very low latency
- ✓Single cable replaces four optics and patch fibers
Cons
- ×At 5m the cable is heavy and stiff, complicating cable management
- ×Passive DAC still limited to short data-center distances
- ×Requires switch breakout configuration
- ×Fixed assembly cannot be shortened or repaired
FAQ
How far will this reach?
It is a 5m (16.4 ft) passive copper cable, suitable for cross-rack runs within a data center or computer room.
Does each branch run at 25G?
Yes. The four SFP28 legs each carry 25G, totalling 100G off the single QSFP28 end when the port is in breakout mode.
Will it work with non-Cisco switches?
It follows the 100GBASE-CR4 breakout standard and works broadly, but some switches enforce coded cables. Confirm 4x25G breakout support on your platform.