40G QSFP+ DAC Passive Copper Cable, 0.5 - 5 m

Universal Direct Attached Cable (DAC), 0.5 - 5 m
Use FLEXBOX to configure to almost any vendor
Supports Datarates from 2.5 to 41.2 Gbit/s
Modules are permanently attached to each end
Low power consumption < 2 W (less than 1 W per terminal)
Connect different host systems by configuring each side individually
  • Twinax
  • 0.5m - 5m
  • 41.2 G
  • 10G ETH
  • 40G ETH
Selection "S2":
Country of Origin
Vietnam and
Part number

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Compliance Code DAC
Form Factor QSFP+ to QSFP+
Interface Direct Attached Cable
Length 5 m
Temperature Range -5°C - 85°C
Bandwidth 10 Gbit/s - 41.2 Gbit/s
Digital Diagnostic Management (DDM) not implemented
Power Consumption 2 W (1 W + 1 W)
CDR none
Modulation NRZ
Supported Protocols 40G Ethernet, 10G Ethernet

Transceiver Configuration with FLEXBOX

It's that easy to use
Insert Transceiver into FLEXBOX
1. Insert Into FLEXBOX
Select and Configure
2. Select And Configure
  • Choose vendor and compatibility
  • Press play
  • Configuration only takes a few seconds
Use with Device
3. Use With Device
  • Use the transceiver in your device. That's it!
  • Need it for another device? - Re-configure it again and again


All trademarks, registered companies & references cited are the sole property of their respective company and are used solely to assist in the identification of products.

  • MSA Standard compatible
  • A10networks # 13041 compatible
  • Alcatel-Lucent Ent. QSFP-40G-C3M compatible
  • Allied Telesis AT-QSFP3CU compatible
  • Arista 3rd_Party CAB-Q-Q-5M compatible
  • Arista CAB-Q-Q-5M compatible
  • Aruba Networks(ex. HP Network) JH236A compatible
  • Avaya (ex. Nortel) AA1404032-E6 compatible
  • Brocade 40G-QSFP-QSFP-C-0501 compatible
  • Chelsio QTAPCABLE5M compatible
  • Cisco (ex. Meraki) MA-CBL-40G-3M compatible
  • Cisco Systems QSFP-H40G-CU5M compatible
  • Cumulus Networks DAC-5M compatible
  • D-LINK DEM-CB500QXS compatible
  • Dell (ex. Force10) CBL-QSFP-40GE-PASS-5M compatible
  • Dell 470-AAVR compatible
  • Dell DAC-QSFP-40G-5M compatible
  • EMC 851-0255 compatible
  • Extreme (ex. Enterasys) # 13043 compatible
  • Extreme 10323 compatible
  • Fortinet SP-CABLE-FS-QSFP+5 compatible
  • Huawei QSFP-40G-CU5M compatible
  • Intel XLDACBL5 compatible
  • Juniper EX-QSFP-40GE-DAC-5M compatible
  • Juniper JNP-QSFP-DAC-5M compatible
  • LANCOM SFP-DAC40-3M compatible
  • Lenovo (ex. Blade Network) BN-QS-QS-CBL-5M compatible
  • Lenovo (ex. IBM) 00D5809 compatible
  • Lenovo (ex. IBM) 00D5810 compatible
  • MikroTik DAC-QSFP-40G-5M compatible
  • MRV # 13045 compatible
  • NetApp X6559-R6 compatible
  • NetApp X66100-5 compatible
  • Netgear AXLC763 compatible
  • Nvidia (ex. Mellanox) MC2210126-005 compatible
  • Nvidia (ex. Mellanox) MC2210128-005 compatible
  • Oracle X2121A-5M-N compatible
  • Packetlight QSFP+-LR-1102 compatible
  • Palo Alto Networks QSFP+ DAC 5m compatible
  • Planet CB-DAQSFP-2M compatible
  • QNAP DAC-5M compatible
  • Quanta # 13047 compatible
  • Radware # 13048 compatible
  • Solarflare SOLR-QSFPQSFP-5M compatible
  • Spirent ACC-6085A compatible
  • Supermicro CBL-NTWK-0422-01 compatible
Your vendor / compatibility is missing?

What customers say

The SFPs easily integrated with our existing network equipment, ensuring cross-vendor compatibility. The build quality is very good.
Connecting to the FLEXBOX with an Android phone took only a few seconds, and configuring the SFPs was a breeze. We really liked the ability to configure multiple SFPs at once. Shipping is incredibly fast. Support is friendly, technical and helpful.

Sebastian Giss System Engineer/cyon.ch

The flexbox has been an amazing tool for our fibre infrastructure upgrades as we work with different types and manufacturers of equipment, the ability to configure them on the fly when required makes the process a lot easier!

We were pleasantly surprised by the easy to use interface and the extra's such as the power meter.

The travel pack makes it easy to use it off-site in some of our satellite cabs if needed.

The flexoptix universal transceivers are very easy to configure and we will be ordering these in the future.

Tim Waterham ICT Infrastructure Engineer - Wyre Borough Council

I have my own company, and I work as a network consultant for different customers, especially in the wind turbine business. I am often on turbine sites in the middle of the ocean, where I need a SFP of a certain type/vendor. By using the FLEXOPTIX FLEXBOX, I have solved a very big issue, just by having this tool and some FLEXOPTIX SFP`s in my bag. Then I can solve the issue, and get the site up and running immediately. This saves another trip to site (often by helicopter), and a lot of money and time. I am very exited about this product, and will certainly recommend this product to everybody.

Poul Pedersen Network consultant / Ipwork consult ApS

As an IT company specializing in the installation of network equipment, we've found Flexbox by Flexoptix to be an invaluable tool. Its versatility across various transceivers and user-friendly interface has made our job easier and more efficient.

One of the most impressive aspects of Flexbox is the reusability of the transceivers. This feature allows us to reconfigure and reuse the transceivers as needed, offering unprecedented flexibility and cost savings.

The performance is robust, and Flexbox has not only saved us time but also provided a cost-effective solution without sacrificing quality.

In summary, Flexbox by Flexoptix is a must-have tool for anyone in the networking field. We wholeheartedly recommend it and give it a five-star rating.

Gregory Baer CEO / World-Connect Sàrl