Best in 7 days
Pay in installments of $27.17 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Fiberso QSFP+ 40G Module LR4 10Km 1271-1331nm LC SM Fiber Optical Transceiver Compatible with SwitchesWe offer three years warranty, and lifetime technical support! Compatible with all the switch brands in the market, please feel free to contact! PN Description Data Rate Reach Connector Wavelength(nm) TX RX Fiber Output PowerdBm Sensitivity FO QSFP40G SR4 QSFP+ SR4 40Gb s 100m MPO 850 VCSEL PIN MM 7. 6~2. 4 < 9. 5 FO QSFP40G IR4 QSFP+ 2KM 40Gb s 2Km LC 1271~1331 DFB PIN SM 7~1 < 11. 5 FO QSFP40G LR4 QSFP+ LR4 40Gb s 10Km LC 1271~1331 DFB PIN SM 7~2. 3
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
4.4 ★★★★★
Based on 2140 reviews
Sort
Product Reviews
★★★★★ 5
Affordable and good quality socks
Size: Medium, Color: (001) Black / Black / White
Good quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 4
Socks
Size: Large, Color: (001) Black / Black / White
They are very comfortable and fit just right
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2025
★★★★★ 5
Great socks!
Size: Large, Color: (001) Black / Black / White
These fit true to size. Good socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
★★★★★ 5
Great for walking all day at work as well
Size: X-Large, Color: (001) Black / Black / White
I walk approximately 10 miles a day at work, in a manufacturing setting. On concrete with steel toe shoes. My feet have been begging me to change from the socks that I have worn for years. I have worn these other name brand socks for probably 10 years. So, change was obviously something I had to be pushed into. I got on Amazon and searched for training socks. I read the description. Glanced at the reviews. I decided to move forward with purchasing these. I could not have been happier. My feet began feeling better immediately. And the priced was very reasonible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
You have one pair of feet. Treat them kindly with a pair of UA socks
Size: Large, Color: (100) White / White / Black
Soft and tough. Easy on the feet. Nice fit prevents sore spots and blisters.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
