HPE BladeSystem 537963-B21 Compatible 10G SFP+ DAC Cable 5m (16ft) Passive Direct Attach Copper Twinax Cable-HYTOPTODEVICE

The HYTOPTODEVICE 537963-B21 (24AWG) 10g sfp+ to sfp+ dac cable is pre-programmed for seamless "Plug-and-Play" operation with:

• HPE BladeSystem Interconnects:

  • HPE Virtual Connect FlexFabric 10Gb/24-port Module

  • HPE Virtual Connect Flex-10 10Gb Ethernet Module

  • HPE 10GbE Pass-Thru Module

• HPE c-Class Enclosures: Compatibility verified for c7000 and c3000 Platinum enclosures.

• HPE FlexFabric & FlexNetwork Switches: 5900, 5800, and 5700 series (often used as upstream switches).

• HPE ProLiant Blade Servers: BL460c, BL480c, and BL660c (Gen8, Gen9, Gen10).

• Operating Systems: Fully supported in HPE Onboard Administrator (OA) and Virtual Connect Manager (VCM). Identified natively as 537963-B21 in the hardware inventory.

• Enclosure-to-Switch Connectivity: Linking HPE Virtual Connect modules inside a c7000 enclosure to an external core switch located 3 to 4 racks away.

• Inter-Enclosure Stacking: Connecting multiple BladeSystem enclosures to form a unified management and data fabric.

• High-Density Uplinks: Providing a robust 10Gbps uplink for blade servers requiring high-bandwidth access to NAS or SAN storage arrays.

• Data Center Row Expansion: Using the 5m reach to bridge networking gaps in large-scale BladeSystem deployments where switches and enclosures are not in adjacent racks.

Connectivity Solutions(Applications)：

Scenarios 1:10G-to-10G Link for Switch-to-Switch

Scenarios 2:10G-to-10G Link for Switch-to-Server

FAQ for HPE BladeSystem 537963-B21 Compatible 10G SFP+DAC Cable

Q1:Do I need a Passive or Active DAC cable? A:Passive DAC has no signal amplification, it is cheaper and its power consumption almost zero.it is ideal for short distance(up to 7 meters). Active DAC contains electronics to boost the signal.its power consumption is larger, it can transmit longer distance(up to 10 meters）

Q2:How far can I run a 10G SFP+DAC cable?A:Because DACs are made of twinaxial coppers, that are relatively heavy, and signal attenuation occurs more rapidly than in fiber optics. As a result, the practical transmission distance for 10G SFP+ DAC cable is limited to 7 to 10 meters.

Q3:What is the benefit of Passive DAC over Active Optical Cables (AOC)? A: Passive DAC and Active AOC can transmit data in short distance. With zero power consumption, higher reliability and lower cost, passive DAC has more advantages over AOC in short distance like 1 meter. 

Q4:How much power does it draw compared to 10GBASE-T (RJ45)?A:10G SFP+ DACs use copper cables, consuming only about 0.1W of power, whereas 10GBASE-T (RJ45) modules consume between 2.0W and 5.0W. Choosing DAC over RJ45 for short-distance transmission can reduce power consumption by more than 90%, significantly lowering heat generation and resulting in much lower procurement costs.

Q5:Does 10G DAC use Multi-mode or Single-mode fiber?A:Neither.The DAC(Direct-Attach Copper) is a copper cable. using a twinaxial copper architecture (Twinax) to transmit electrical signals directly, no light signals.There are not lasers or optical glass in DAC cable,  it is much cheaper than fiber optics.

Q6:Where to buy 10G SFP+DAC cable?A:There are many factories that produce and sell  passive DAC, but DAC manufacturer china HYTOPTODEVICE is the excellent provider: a source factory, fully controllable process, reliable performance, 100% compatible, sufficient inventory, fast delivery, and quick response.

Q7:Is 10G SFP+ to SFP+DAC hot-swappable?A:HYTOPTODEVICE SFP+10G DAC is hot-pluggable, hot Pluggable SFP+ Compliant.you can plug or unplug the passive DAC, while the device is powered on without damaging the hardware.

Q8:who makes the best SFP+DAC cable?A: Transceiver Manufacturer China HYTOPTODEVICE is the excellent provider.Sorce factory,reliable quality, 100% compatibiltiy.fast delivery and quick response.HYTOPTODEVICE send a tool that allows you to re-program the compatibility of your cables yourself.

Q9:What is the difference between 24AWG and 26AWG for a 5-meter DAC？A: The main difference lies in signal integrity. 24 AWG cables have a larger cross-sectional area, which significantly reduces resistance. For a 5-meter SFP+ copper cable, the eye diagram of a 24 AWG cable is “clearer” than that of a 26 AWG cable, thereby providing better electromagnetic interference shielding and more stable performance in high-density, high-interference data center environments.

Q10:What is the difference between "Passive" and "Active" DAC?There are distinct differences between Passive and Active DAC.The Passive DAC has no signal amplification. its lengths is under 7m. With zero power consumptions,it cost is cheaper. The Active DAC contains a chip to boost the signal. Used for slightly longer copper runs (up to 10m-15m) and is generally thinner/more flexible.

Q12:Can I plug a 10G DAC into a 1G SFP port?A:No. SFP+ (10G) ports can often accept 1G transceivers, but a 1G SFP port cannot scale up to recognize a 10G DAC cable. You should Make sure the cable speed matches the port with the lowest rated speed.

Quality Assurance：Your Trusted Optical Transceiver Source

 HYTOPTODEVICE is a vertically integrated manufacturer of high-performance optical transceivers. By controlling core materials at the source, we ensure every SFP module meets the highest standards of reliability and customization.

• Vertical Integration: In-house core material production ensures a stable, self-sufficient supply chain for all optical modules.

• Total Traceability: End-to-end oversight from raw components to final transceiver assembly guarantees 100% controllability.

• Bespoke Solutions: Expert-led R&D provides customized SFP transceiver designs tailored to your specific technical needs.

• 24-Hour Response: Our technical team guarantees a primary response to any inquiry or quality concern within 24 hours.

Carrier-Grade Quality. Factory-Direct Control. Rapid Response.

Quality Certification & Compliance：

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.

We adhere to rigorous standards for our SFP modules and network solutions:

• ISO 9001: Certified quality management and production consistency.

• CE & FCC: Fully compliant for seamless Global Market Access.

• RoHS: Committed to environmental responsibility and hazardous material control.

• Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.

Certified Quality. Global Standards. Guaranteed Performance.

Rigorous Industrial Product Testing：

   

100% 3rd Party Compatible：

Partial Test Demonstration：

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