SKU: 58376262502

Lenovo 3M Passive QSFP28 DAC

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Description

Lenovo 3M Passive QSFP28 DACExperience the speed and reliability of 100 Gbit s connectivity with Lenovos 3M Passive QSFP28 Direct Attach Cable (DAC). This high performance copper interconnect is engineered for data centers that demand ultra low latency, stable throughput, and effortless deployment. The Lenovo 3M Passive QSFP28 DAC is designed for short reach interconnections between high density network devicessuch as servers, top of riber switches, storage arrays, and leaf

Experience the speed and reliability of 100 Gbit/s connectivity with Lenovo’s 3M Passive QSFP28 Direct Attach Cable (DAC). This high-performance copper interconnect is engineered for data centers that demand ultra-low latency, stable throughput, and effortless deployment. The Lenovo 3M Passive QSFP28 DAC is designed for short-reach interconnections between high-density network devices—such as servers, top-of-riber switches, storage arrays, and leaf-spine fabrics—providing a plug-and-play solution that minimizes downtime and simplifies data-center cabling. With a precise 3-meter (9.84 ft) length, this DAC optimizes space, prevents cable clutter, and helps you create scalable, future-ready 100G Ethernet topologies without compromising performance or reliability.

  • 3 meters (9.84 feet) in length provides flexible, clean arrangements for rack-to-rack or server-to-switch interconnects in dense data-center environments.
  • QSFP28 to QSFP28 passive copper cable delivers full 100 Gbps bandwidth across four 25 Gbps lanes, ideal for short-reach interconnects with minimal signal loss.
  • Passive design means no external power or active components are required, reducing energy use and simplifying installation while lowering total cost of ownership.
  • Plug-and-play compatibility with Lenovo servers, switches, and networking gear that support QSFP28 100G interfaces, enabling quick rollout and straightforward upgrades.
  • Durable construction and reliable performance with robust QSFP28 connectors and copper media engineered to withstand frequent deployments, hot-swapping where supported, and long-term operating stability.

Technical Details of Lenovo 3M Passive QSFP28 DAC

  • Length: 3 meters (9.84 feet)
  • Cable Type: Passive QSFP28 Direct Attach Copper (DAC) cable
  • Data Rate: 100 Gbps total (4 x 25 Gbps lanes)
  • Connectors: QSFP28 on both ends
  • Application: Short-reach data-center interconnects, server-to-switch, switch-to-switch, and high-density top-of-rack deployments
  • Compatibility: Primarily designed for Lenovo networking hardware, with QSFP28-form factor ensuring broad interoperability across 100G Ethernet environments that support QSFP28

how to install Lenovo 3M Passive QSFP28 DAC

  • Power down or ensure your devices support hot-swapping for QSFP28 DACs, then locate the QSFP28 ports on the devices you intend to connect.
  • Align the connectors with the QSFP28 ports and insert gently until the connectors seat firmly. Do not force or bend connectors at sharp angles.
  • Ensure the cable length and routing prevent excessive bending; maintain the recommended bend radius to protect copper conductors and preserve signal integrity.
  • Power up the devices (or confirm link status if hot-swapping) and check the link LEDs on both ends. A solid or blinking link indicator typically confirms a healthy connection.
  • Run basic network tests to verify throughput and latency. If performance issues arise, verify port configurations, speed settings (100G), and cabling alignment, then re-seat the DAC if needed.

Frequently asked questions

  • What is the Lenovo 3M Passive QSFP28 DAC? It is a 3-meter passive copper Direct Attach Cable with QSFP28 connectors, designed for high-speed 100G Ethernet connections in data centers.
  • What does “passive” mean for this DAC? A passive DAC contains no active electronics or power requirements; it relies on the host devices’ transceivers for signal processing and is intended for short-reach deployments where active components are unnecessary.
  • What devices is it compatible with? It is optimized for Lenovo networking hardware and other QSFP28-compatible devices that support 100G interfaces. Always verify your port speed and compatibility in your device’s documentation.
  • What length is ideal for 100G deployments? For many data-center topologies, a 3-meter DAC is ideal for spine-leaf or top-of-rack layouts where devices are within a few meters of each other and cable congestion is a concern.
  • Is it hot-swappable? In many Lenovo and compatible environments, QSFP28 DACs are hot-swappable if the devices support it. Always follow your equipment’s guidelines for hot-swapping and cabling.
  • Can I mix this DAC with fiber or longer copper cables? No. DACs are intended for short-reach copper interconnects. For longer distances, consider optical transceivers with fiber cables appropriate to your network design.
  • How do I verify bandwidth and latency? Use standard network benchmarking tools (iperf, ethtool, or vendor-specific test suites) to confirm throughput, latency, and error rates across both ends of the link.
Shipping Notes
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Exchange/Return Notes
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SKU: 58376262502

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Oregon BookWorm
Chelsea, US
★★★★★ 5
No breakup, very sweet, instalove
Format: Kindle
Omegaverse and doesn't disappoint! Sweet guys, newly Omega FMC. The boyfriends are boyfriends. What's not to love? No angst, no breakup.
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Reviewed in the United States on February 23, 2025
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ForTheLOVEofBooks
Charlottesville, US
★★★★★ 4
Pretty Darn Good
Format: Kindle
So I’ve been on a omega kick and this definitely hit the spot. Madison was frustrating at times with how she acted towards Lucas, Gray, and Rian. It was like she said towards the end, she didn’t believe she deserved nice things. It would have been nice to hear from her best friends again. They kind of were there in the beginning and the gone except for mention of text messages received from them. I feel like her friends would have been great help in encouraging Madison to go with the pack and never give Brent another chance because he was toxic. I loved Rian. His personality was awesome. His humor. His ability to make Madison comfortable whenever she was feeling overwhelmed. And the fact he fell for her and she fell for him first. They are cute together. I do feel like Lucas was the odd man out though. Like Lucas didn’t develop as much of a relationship with Madison. I would have really liked to see more development in the relationship between them. It was also the same with him and Rian. There is really no relationship displayed. Most of the relationship being displayed is between Rian and Gray. Nevertheless, I loved reading about the dynamic that came to fruition during the entirety of this story. Madison finally got her happiness. And Brent finally got punched in the face. Everyone got exactly what they deserve.
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Reviewed in the United States on September 6, 2022
E
Verified Purchase
ediebegonia
San Leandro, US
★★★★★ 3
Pack's Promise was okay but not great
Format: Kindle
Pack's Promise was okay but not great. I won't recommend it to anyone that I know. PRO: * Very likable characters * Lots of steamy scenes that are written very well * The spelling and grammar are good * The punctuation is good with the exception of using hyphens instead of commas. Lots of hyphens. Lots and lots of hyphens. CON: * Almost no interactions with any characters outside of Madison and the pack * Nearly no plot. They meet, get together for a heat, agree to make it permanent, done * Quite a few typos such as extraneous words, missing words and words out of order THINGS TO KNOW: * More steamy scenes than storytelling * A lot of MM & MMM, some MFMM during heat
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Reviewed in the United States on January 5, 2023
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LJM
Alexandria, US
★★★★★ 5
such a good read
Format: Kindle
Madison, Lucas, Grey and Rian were made for each other!!! First time reading from this author and I’m not disappointed!!! Absolutely love the Love in this book and couldn’t ask for a better OV!
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Reviewed in the United States on October 25, 2023
B
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Beccaroo
Pawtucket, US
★★★★★ 4
Fluffy and Nice Omegaverse
Format: Kindle
… this would have made 5 stars but for 2 reasons. A.) there were quite a few typos; misspelled words, missing quotations, “the his” mistakes, and various signs that maybe a proofread would do good. B.) the writing was quite textbook. Late blooming omega is struggling with her new self, finds a absurdly wealthy pack of alphas, every thing is almost insta-love but she resists, then decides to love herself and let everyone be happy. Rian was my favourite (obviously the author’s favourite too because he got the most page time) but I wish we could see more of his CEO side? He went to work maybe ONCE the entire time. Gray was supposed to be the “growly one” but he turned out to be puppy dog. Lucas was a genius brainiac doctor - but also super alpha with an aggressive hindbrain with a breeding k*nk?? And then there was no actual “breeding”?? Spice 3/5 - normally omegaverse books are super high on messy smut but this was tamer. Romance 3/5 - insta-love that was then resisted because of personal hangup’s Plot 2/5 - weird paced head hopping, showing the same scene from different POV’s that made me feel like it was 2 steps backward, 1 step forward. Humour 4/5 - there were a dozen lines that genuinely made me chuckle out loud Would have been five stars but the lack of proofreading and the predictable plot made me unable to get up to ADORED IT level - four stars is still and official ENJOYED IT, y’all. This isn’t a bad rating. The “Club Heat” has intriguing possibilities so I’m going to give the second one a shot.
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Reviewed in the United States on March 31, 2023

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