| NO. | Brand | Compatible P/N | Transceiver Type |
| 1 | Cisco | QSFP-4SFP10G-CU3M | |
| 2 | Arista Networks | CAB-Q-S-3M | |
| 3 | Juniper | QFX-QSFP-DACBO-3M | |
| 4 | Brocade | 40G-QSFP-4SFP-C-0301 | |
| 5 | Dell Force10 | 470-13411 | |
| 6 | H3C | LSWM1QSTK4 |
| Cisco Compatible |
QSFP-4SFP10G-CU3M
|
Vendor Name | HYTOPTODEVICE |
| Connector | QSFP+ to 4 x SFP+ | Max Data Rate | 40Gbps |
| Cable Length | 3m (10ft) | Wire AWG | AWG 30 |
| Cable Type | Passive Twinax | Power Consumption | ≤0.5W |
| Media | Copper | Operation Temperature | 0~ 70 °C (32 to 158°F) |
| Jacket Material | PVC(OFNR) | Protocols | SFF-8436, SFF-8431 and QSFP+ MSA |
| Minimum Bend Radius | 21mm | Application | 40G InfiniBand 8x DDR, 4x QDR, 10/40 Gigabit Ethernet, Fibre Channel |
Usage Guidelines & Best Practices
Mandatory Port Breakout Configuration: Ensure the host QSFP+ port supports channelization. Enable breakout mode (4x10G) via the switch CLI before connecting the cable.
Cabling Requirements: Do not exceed the minimum 21mm bend radius, avoid sharp folding, heavy extrusion or long-term tension on the cable assembly.
Port Installation Standard: Do not mix this breakout DAC with straight QSFP+ to QSFP+ DAC configuration.
Hot‑swap rule:Never pull or tug directly on the individual breakout legs. Always use the integrated pull-tab or bale latch when inserting or removing connectors.
Operating Environment: 0‑70℃, indoor cabinet deployment only.
For detailed operation instructions, please refer to the User Guide.
Full Compatibility List & Supported Devices
Built on universal MSA open standards, this 40G QSFP+ to 4 x 10G SFP+ passive breakout DAC cable can interoperate with mainstream network brands including Arista, Intel, Juniper, Dell, NVIDIA Mellanox and IBM, for mixed-vendor rack stacking and server fabric expansion.
Q1: Which NX-OS firmware releases support breakout mode for this Cisco compatible QSFP+ 40G to 4x10G Breakout Cable? A: It works reliably on NX-OS 7.x, 9.x mainstream releases. HYTOPTODEVICE validates each batch against common Cisco firmware builds to lower deployment risk for Cisco solution partners placing stock orders.
Q2: Can this QSFP+ 40G to 4x10G Breakout Cable work on Cisco Catalyst 9000 series switches for 40G breakout? A: Most Catalyst 9000 QSFP+ ports do not support native 4x10G breakout. Confirm platform capability before purchase, as this cable is optimized primarily for Cisco Nexus leaf switches.
Q3: What is the maximum cumulative signal loss allowed for this 2m QSFP+ 40G to 4x10G Breakout Cable on 40GBASE-CR4 links? A: The 3m twinax design reserves sufficient loss budget for standard 40GBASE-CR4 links. Its stable electrical performance makes it a preferred stocking option for Cisco data center contractors.
Q4: Can I request test sample units of this QSFP+ 40G to 4x10G Breakout Cable before bulk order confirmation? A: HYTOPTODEVICE offers sample testing service for this Cisco compatible breakout cable. It helps system integrators verify interoperability in their lab environment before large-scale procurement.
Q5: Will Cisco NX-OS show fault alarms if I deploy this QSFP+ 40G to 4x10G Breakout Cable with Cisco original SFP+ transceivers on the same switch? A: No, DAC and optical transceivers operate independently per interface. As long as breakout mode is correctly configured, integrators can mix media types without persistent link faults.
Q6: Does this QSFP+ 40G to 4x10G Breakout Cable comply with Cisco FET (Fabric Extender) port breakout requirements? A: Yes, it supports breakout on compatible Cisco FEX modules such as N2K-C2348UPQ. Many resellers purchase this cable to expand 10G port density for Cisco fabric extender deployments.
Q7: Can I use the same pre-coded QSFP+ 40G to 4x10G Breakout Cable across Cisco Nexus 3000 and Nexus 5000 mixed fabrics? A: Yes, our Cisco EEPROM profile fits both series. However, breakout CLI commands differ between platforms, so buyers should prepare platform-specific config guides during installation.
Q8: What packaging protection is used for this QSFP+ 40G to 4x10G Breakout Cable during international shipping for distributors? A: Every cable gets anti-static bag packing plus foam cushioning for transit. Custom branded cartons and label options are available for wholesalers who place export bulk orders.
Q9: Does this QSFP+ 40G to 4x10G Breakout Cable support Cisco lossless Ethernet and FCoE storage traffic? A: Yes, passive copper does not interfere with PFC priority flow control. It carries FCoE and normal Ethernet traffic reliably, suitable for buyers building Cisco unified storage fabrics.
Q10: What troubleshooting steps help if one SFP+ leg of this stocked QSFP+ 40G to 4x10G Breakout Cable cannot come up on Nexus? A: First reseat the SFP+ connector and verify breakout port config. Lane drop issues usually come from incomplete channelization commands rather than cable defects for newly purchased units.
Q11: Can I store unused QSFP+ 40G to 4x10G Breakout Cable in my warehouse inventory long-term without performance decay? A: Proper dry, room-temperature storage keeps the cable stable for multiple years. HYTOPTODEVICE uses high purity copper conductors so stocked cables maintain consistent specs for resale.
Q12: Is there any Cisco license requirement to enable 40G-to-4x10G breakout for this QSFP+ 40G to 4x10G Breakout Cable? A: Breakout feature support depends on your Cisco switch license tier. Some Nexus platforms require advanced network license before the channelization CLI will take effect for purchased cables.
Q13: Can this QSFP+ 40G to 4x10G Breakout Cable be paired with Cisco UCS C-series rack servers for 10G NIC uplinks? A: Yes, the four SFP+ branches connect smoothly to 10G SFP+ NICs inside UCS C-series servers. This is a popular low-latency cabling choice for Cisco hyper-converged server buyers.
Q14: What test documents can HYTOPTODEVICE provide for tender projects requiring validated QSFP+ 40G to 4x10G Breakout Cable? A: We can supply batch TDR test reports, RoHS and REACH certificates. These documents support wholesalers bidding for Cisco data center government and enterprise tender projects.
Q15: Can I change the EEPROM signature later if I move this QSFP+ 40G to 4x10G Breakout Cable from Cisco Nexus to another vendor’s switch? A: Yes, HYTOPTODEVICE provides EEPROM reprogramming service. It helps resellers reuse stocked breakout cables across multi-vendor hardware fleets after migration.
Packaging & Custom OEM Solutions
ESD Protection & Fast Shipping: Every transceiver is sealed in an ESD-safe bag and ready for same-day dispatch from stock.
Custom OEM & Branding: We provide logo printing, private labeling, and custom packaging to help distributors and integrators build their brand—no factory investment required.
Why Network Engineers Choose HYTOPTODEVICE
HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.
“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia
Quality Certification & Compliance
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, 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.
