Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 25 - Jun 30
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Description
Cisco QDD-400G-DR4-S Compatible 400GBASE-DR4 QSFP-DD PAM4 1310nm 500m DOM Transceiver Module (SMF, 1310nm, 500m, MTP/MPO, DOM)Application: 400GBASE Data Center Cisco Compatible: QDD 400G DR4 S Commercial Temperature Range: 0 to 70C (32 to 158F) Connector: MTP MPO 12 DDM DOM: Supported Electric Signal: 8x50G Form Factor: QSFP DD Max Cable Distance: 500m Max Data Rate: 400Gbps Media: SMF Modulation Format: PAM4 Optical Signal: 4x100G Power Consumption: <12W Protocols: QSFP DD MSA Compliant Receiver Sensitivity: < 1. 9dBm Receiver Type: PIN Transmitter Type: 1310nm EML TX
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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 1091 reviews
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Product Reviews
★★★★★ 5
Comfortable
Size: One Size, Color: (348) Silica Green / White / Titan Gray
Comfortable and stays in place
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Reviewed in the United States on May 27, 2025
★★★★★ 5
Best socks for work or working out.
Size: One Size, Color: (015) Tetra Gray / Gray Matter / White Quartz
Great socks. They stay on your heel! Love the material; breathable and not thick. Love the neutral tone colors.
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Reviewed in the United States on January 1, 2025
★★★★★ 3
Didn’t meet full expectations
Size: One Size, Color: (001) Black / Black / Jet Gray
Much shorter than anticipated.
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Reviewed in the United States on December 16, 2025
★★★★★ 5
Perfect thickness and soft feel.
Size: 6-10, Color: Halo Gray/Assorted
Why did you pick this product vs others?:
Love theses socks. It's hard to find socks which won't get pulled down by athletic shoes. These stay put.
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Reviewed in the United States on June 29, 2025
★★★★★ 5
Comfy, great quality
Size: 6-10, Color: White
I’ve had these for quite a while now. They are holding up very well as i wear them a lot for work (coaching). They are very cushiony and most importantly, they do not slip!
I would compare these to Bombas but at a significantly better price point.
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Reviewed in the United States on December 18, 2024
