Best in 7 days
Pay in installments of $112.38 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 25 - Jun 30
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Cisco QDD-400G-FR4-S Compatible 400GBASE-FR4 QSFP-DD 1310nm 2km DOM LC Duplex SMF TransceiverThe Cisco QDD 400G FR4 S Compatible 400GBASE FR4 QSFP DD PAM4 1310nm 2km DOM Duplex is a high performance 400 Gigabit Ethernet module that supports link lengths of up to 2km SMF with duplex LC connector. It is compliant to IEEE 802. 3bs, 400GBASE FR4 Spec of 100G Lambda MSA group, and 400GAUI 8 CEI 56G VSR PAM4 standards. The 400 Gigabit Ethernet signal is carried over four CWDM grid optical wavelengths. Multiplexing and demultiplexing of the four
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
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 993 reviews
Sort
Product Reviews
★★★★★ 5
Great
Color: Gray
I purchased these after having a total knee replacement. My heels were getting sore from the exercises. These little socks with the gel has helped tremendously. I am now sleeping in them. and the soreness is going away.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Great price, good quality moisturizing socks
Color: Gray
Nice quality, looks just like image.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Fantastic!
Color: Gray
Excellent product… it’s the fix for dry cracked heels
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
I’d buy again
Color: Gray
It does a great job!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
These are work beautifully.
Color: Gray
These work wonderfully. Use very light moisturizer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
