SKU: 28923022257

Lenovo 5M Passive QSFP28 to 4xSFP28 DAC

Sale price$212.45 Regular price$236.05
Save 10%

Pay in installments of $59.01 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 29 - Sep 3

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Lenovo 5M Passive QSFP28 to 4xSFP28 DACMeet the Lenovo 5M Passive QSFP28 to 4xSFP28 DAC, a high performance breakout cable that delivers reliable, low latency connectivity between data center switches, servers, and storage devices. Designed for modern Lenovo networking environments and compatible with a broad range of QSFP28 SFP28 ports, this 5 meter copper DAC offers a streamlined, cost effective path to consolidating multiple 25G links into a single high speed 100G connection. With its

Meet the Lenovo 5M Passive QSFP28 to 4xSFP28 DAC, a high-performance breakout cable that delivers reliable, low-latency connectivity between data-center switches, servers, and storage devices. Designed for modern Lenovo networking environments and compatible with a broad range of QSFP28/SFP28 ports, this 5-meter copper DAC offers a streamlined, cost-effective path to consolidating multiple 25G links into a single high-speed 100G connection. With its passive design, plug-and-play simplicity, and rugged build, it’s an ideal choice for data centers, rack installations, and enterprise networks seeking deterministic performance without the need for external power or active components.

  • Breakout efficiency for modern data centers: Converts a single QSFP28 port into four independent SFP28 lanes, enabling flexible aggregation of 25G links to reach total aggregate bandwidth of up to 100G where supported by your hardware.
  • 5-meter (16.40 ft) length for versatile deployments: The length provides ample reach for cable management in dense racks, Top-of-Rack deployments, and multi-device connections, while preserving tight timing and signal integrity.
  • Passive copper design for cost and power efficiency: No external power or active components are required, delivering a straightforward, low-cost, energy-efficient solution with reliable performance at short to moderate distances.
  • Plug-and-play compatibility with Lenovo and standard QSFP28/SFP28 ports: Ideal for Lenovo servers, switches, and storage arrays, while also compatible with other vendors’ devices that support QSFP28 breakout to SFP28 lanes, simplifying integration across mixed vendors.
  • Low-latency, deterministic data transfer for critical workloads: Engineered to minimize latency and jitter, supporting high-demand applications such as HPC, virtualization, and dense compute clusters where consistent throughput matters.

Technical Details of Lenovo 5M Passive QSFP28 to 4xSFP28 DAC

  • Length: 5 meters (16.40 feet)
  • Cable type: Passive QSFP28 to 4×SFP28 DAC
  • End configuration: 1× QSFP28 on one end; 4× SFP28 on the other end
  • Data rate (per lane): Up to 25 Gbps per SFP28 lane; up to 100 Gbps aggregate across all four lanes
  • Connector types: QSFP28 to four SFP28 connectors
  • Material and construction: Copper DAC with shielding designed for reliable signal integrity and EMI protection
  • Applications: Data centers, servers, switches, storage arrays requiring breakout connectivity
  • Compatibility: Optimized for Lenovo networking hardware and broadly compatible with other vendors that support QSFP28 to SFP28 breakout

How to install Lenovo 5M Passive QSFP28 to 4xSFP28 DAC

  • Verify port compatibility: Ensure the source device has a QSFP28 port and the destination devices offer SFP28 ports that support 25G links per lane. The setup should support breakout to four individual 25G links.
  • Power considerations: This is a passive copper cable and does not require power. You can perform hot-plug insertion on devices that support hot-swapping; consult your hardware manual for specific guidance.
  • Connect the QSFP28 end: Insert the QSFP28 connector firmly into the corresponding QSFP28 port on the source switch or server. You should hear or feel a secure click when seated properly.
  • Connect the SFP28 ends: Attach each of the four SFP28 connectors to their respective SFP28 ports on the target devices. Align connectors correctly and ensure all four links are fully seated.
  • Power on and verify: Power up the connected devices (if not already powered) and check the port status indicators. Confirm that all four SFP28 links come up and that there are stable, valid link lights and throughput on each lane. If any link fails, reseat connectors and verify port configurations in the switch/router settings.

Frequently asked questions

  • Q: What is the Lenovo 5M Passive QSFP28 to 4xSFP28 DAC best used for?
  • A: It is a breakout cable designed to convert one high-speed QSFP28 port into four 25G SFP28 links, enabling scalable, high-bandwidth connections between switches, servers, and storage in data centers or enterprise networks.
  • Q: Is this cable compatible with non-Lenovo hardware?
  • A: Yes. The cable is compatible with devices that support QSFP28 and SFP28 breakout configurations. It works with a wide range of networking gear that adheres to QSFP28/SFP28 standards, though always verify port readiness and speed settings in your device documentation.
  • Q: What is the maximum total bandwidth supported by this breakout?
  • A: When four 25G lanes are utilized, the aggregate bandwidth can reach up to 100 Gbps, depending on the capabilities and configuration of the connected hardware.
  • Q: Do I need any drivers or special software to use this DAC?
  • A: No. This is a passive copper DAC and operates as a plug-and-play breakout cable. Drivers are not required; performance is determined by the hardware’s port capabilities and configuration.
  • Q: Can I replace a single SFP28 end if one lane fails?
  • A: It depends on your hardware and cabling arrangement. In a four-lane breakout, typically you would replace or reseat the affected SFP28 module and ensure the corresponding link is properly configured on the switch or server. Always follow your vendor’s troubleshooting steps for link issues.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28923022257

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 19 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Carmen Alicea
Chelsea, US
★★★★★ 4
Baby bumps and bodyguards
Format: Kindle
Dark, emotional, and unexpectedly tender, Not Ready is an omegaverse romance that delivers found family feels, fierce protectiveness, and a very pregnant heroine who refuses to break. Vale’s on the run from a stalker, but lands in the arms of three private security alphas, cue the swoony tension, fake marriage twist, and slow-burn heat. It’s a little gritty, a little soft, and a whole lot addictive. If you love protective alphas, high stakes, and heroines with quiet strength, this one’s a must-read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
S
Verified Purchase
Shianne Whipple
Whiting, US
★★★★★ 5
Strong Omegaverse Comfort and a Attention Grabbing Plot
Format: Kindle
Jillian West never misses when it comes to Omegaverse, and Not Ready is no exception. This story was the perfect blend of cozy comfort and emotional depth while still delivering a strong plot. Vale is such a powerful heroine, she is strong, capable, and determined but I love that she still allows her pack to love and take care of her. It’s that balance of independence and vulnerability that makes her so relatable. The relationship dynamics were amazing: Bishop is steadfast and completely head over heels, Mercy is skeptical but protective in his own way, and Holt is the hesitant one whose slow fall is so satisfying to watch unfold. The romance hits that sweet spot between insta-love and cautious build, keeping me hooked the entire way through. And that ending. Oh my god, the cliffhanger! I need the next book in this duet immediately.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 28, 2025
N
Verified Purchase
NLB
Cuba, US
★★★★★ 5
Interesting
Format: Kindle
So I will say I enjoyed the story, for sure had its moments where it dragged but it was a great story. I really liked that omegas picked their alphas/make the pack. Normally the Alphas make it and the omega fits in with them which is great but I enjoyed this new version where all the power basically went to the omega. It was a nice change of pace. I can admit some of the weird bedroom stuff with her being pregnant was odd, it’s really not hard to do stuff when pregnant (I know I’ve had two and it’s normal and even encouraged at the end especially if you want the baby out). But I like the story as a whole and will read the second, I do hope the next one isn’t dragged bc it stopped being action or tense after she met her alphas and I don’t think it was brought up or properly done when they tried to do it. More sweet after she left.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2024
A
Verified Purchase
Altairjones
Lake Worth, US
★★★★★ 3
I’m a little disappointed.
Format: Kindle
I usually like Jillian West’s books but this one was missing a lot for me. The pregnancy didn’t come across as real. She’s on her feet for 12 hour days but is perfectly healthy at 8 months pregnant? Yet the week she moves in all of a sudden she’s not? She is planning on actually running during one of the plot buildups. But at 8 months pregnant that’s incredibly hard to do. The lack of breathing ability and lung space, the change in body center, mass, and gravity. All of it prohibits running, unless you’re an athlete this didn’t come off as at all realistic. I didn’t feel any connection with the alphas. There wasn’t any emotional connection. It could be because of the tense it was written in. But I didn’t get any deep feelings out of this. It came across as checking off boxes. Even the spicy scenes weren’t really believable for me. I wanted to see them fall for her, and it just kind of all fizzled. Even Bishop. One thing I did really like was the ending. I did not see it coming and I’m interested in reading book two because of it. But on the whole this book was mostly disappointing for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2024
M
Verified Purchase
Melissa Williams
Lake Worth, US
★★★★★ 4
4.25 stars
Format: Kindle
Vale is an 8 month pregnant omega working as a waitress at a strip club and a cam girl. She starts to get very creepy vibes from a regular at the club, and her baby daddy ghosted her. She has had an online relationship with a man named Bishop through her cam girl status. One night, bishop was paying to watch her sleep and ansthe creepy regular Andrew break in and watch her sleep he tells vale to come to him at his business now. She flees and finds herself at a large security company with some.hot of alphas who are there to help her. This imegaverse is a little different than I have read, but I am thoroughly enjoying it. Vale is not a traditional omega she was raised by a single beta mom, and the alphas are not normal alphas they have never really loved pack life. But they are ruthless mercenaries. They need her, and she needs them. I love the aspect of the stalker and now the plot twists at the end, so so good. Sometimes, it seemed a little slow and stale mated, but since this a duet, I think It was just her starting to have Vale get to know her alpha suitors. Cliffhanger for sure with this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2024

recommand products