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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
720-128729 Juniper® compatible Direct Attach Copper Breakout Cable 400GBase PAM4 QSFP-DD to 2x200GBase QSFP56 (Passive Twinax, 2m)720 128729 Juniper compatible Direct Attach Copper Breakout Cable 400GBase PAM4 QSFP DD to 2x200GBase QSFP56 (Passive Twinax, 2m) ATGBICS Juniper compatible 720 128729 400GBase CU QSFP DD to 2 QSFP56 Passive Direct Attach Cable operates over Passive Copper with a cable length of 2m. This product operates within a commercial temperature range. It is suitable for short reach connection between 400G QSFP DD and 200G QSFP56 enabled host adapters,
720-128729 Juniper® compatible Direct Attach Copper Breakout Cable 400GBase PAM4 QSFP-DD to 2x200GBase QSFP56 (Passive Twinax, 2m)
ATGBICS Juniper® compatible 720-128729 400GBase-CU QSFP-DD to 2 QSFP56 Passive Direct Attach Cable operates over Passive Copper with a cable length of 2m. This product operates within a commercial temperature range. It is suitable for short reach connection between 400G QSFP-DD and 200G QSFP56 enabled host adapters, switches, and servers in 400G interconnecting networking applications and provides a cost-efficient way to connect hardware within close proximity racks. This breakout cable connects to 1 x 400G QSFP-DD port on one end and to 2 x 200G QSFP56 ports on the other end.
Our product meets the specification of Juniper® 720-128729 and we proudly offer a compatibility guarantee and limited lifetime warranty. Our rigorously tested products record a unique traceable serial number and are fully compliant with all MSA (Multi-Source Agreement) and IEEE standards & protocols.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 876 reviews
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Product Reviews
★★★★★ 5
Gets the job done
Size: 200-Foot, Style: 14-Gauge
Very sturdy with excellent sheathing protection/durability. Great value for the linear ft available. Paired with Amazon basic banana plugs for excellent speaker wire
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Durable Speaker Wire
Size: 100-Foot, Style: 14-Gauge
Durable and difficult (good thing) to strip off the outer sleeve. Very good speaker wire.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Exceeded my expectations in every way.
Size: 200-Foot, Style: 14-Gauge, Size: 200-Foot, Style: 14-Gauge
Great quality solid copper cables. None of the local stores, such as Walmart or Autozone had Any real copper cables at all. All offerings were CCA dual-conductor cables that are essentially 95% aluminum. 2/3rd of available options had Packaging that didn't openly disclose this fact. It took time researching each "high-performance", or "professional grade" audio cables they had in stock. Perhaps, there's no regulations that require manufacturers to to make any reference clarifying that the product isn't pure copper. It was surprisingly misleading. Amazon Basic branded cables are as good as the best cables you cables you can buy elsewhere online. 14 Gauge us about as thick as you could reasonably use at home without it becoming a major annoying mess. Great price as well. Made in Vietnam - is just the icing on the cake. Ordered the "used" option. Cables were brand new, the coil was slightly banged up in shipping and dusty, thus the 15% discount
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Durability
Size: 100-Foot, Style: 14-Gauge
Great wire. Works perfectly
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Nice quality
Had to return due to our mistake but the mechanic said it was good quality. Ordered the correct size and worked great.
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Reviewed in the United States on March 30, 2025