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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
QSFP-DD-400G-FR4S-MSA Universally Coded MSA Compliant Transceiver QSFP-DD 400GBase-FR4 PAM4 (1271/1291/1311/1331nm, SMF, 2km, LC, DOM)QSFP DD 400G FR4S MSA Universally Coded MSA Compliant Transceiver QSFP DD 400GBase FR4 PAM4 (1271 1291 1311 1331nm, SMF, 2km, LC, DOM) ATGBICS Universally Coded MSA compliant QSFP DD 400G FR4S MSA QSFP DD 400GBase FR4 form factor network transceiver supports a distance of up to 2km over single mode fibre (SMF) using a wavelength of 1271 1291 1311 1331nm via an LC Duplex connector. This product operates within a commercial temperature range. Digital
QSFP-DD-400G-FR4S-MSA Universally Coded MSA Compliant Transceiver QSFP-DD 400GBase-FR4 PAM4 (1271/1291/1311/1331nm, SMF, 2km, LC, DOM)
ATGBICS Universally Coded MSA compliant QSFP-DD-400G-FR4S-MSA QSFP-DD 400GBase-FR4 form factor network transceiver supports a distance of up to 2km over single-mode fibre (SMF) using a wavelength of 1271/1291/1311/1331nm via an LC Duplex connector. This product operates within a commercial temperature range. Digital optical monitoring (DOM) support is also present enabling real-time monitoring of the parameters of the fibre optic transceiver.
Our product meets the specification of Universally Coded MSA QSFP-DD-400G-FR4S-MSA 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
4.3 ★★★★★
Based on 779 reviews
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Product Reviews
★★★★★ 5
Hands free comfort!!
Size: 5 Big Kid, Color: Black
Superb comfortable, great quality and got it at such a good price. My daughter is very happy and wears these every day since a couple of months and they still look new. Best part hands free!!
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Reviewed in the United States on December 1, 2025
★★★★★ 5
good shoes
Size: 8 Toddler, Color: Black, Size: 8 Toddler, Color: Black
fit great the child like it
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Toddler approved
Size: 8 Toddler, Color: Black
My kid loves these shoes. We’ve bought them multiple times. She can get them on and off easily and they stand up to her wild adventures.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
So cute and so worth it!
Size: 3 Little Kid, Color: Turquoise
AMAZING for my 7 year old daughter. She can tie shoes but I no longer have to wait on her to do so. It takes 2 seconds for her to put these on and she says that they are super comfortable. We have been to Silver dollar City multiple times and she never complains about her feet hurting! They are easily washed in the washer. They hold up great. I think they are very much worth the money! Fit normal.
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Reviewed in the United States on December 8, 2025
★★★★★ 4
Our everyday shoe!
Size: 13 Little Kid, Color: Turquoise
Great shoes and good fit. Fits as expected. The sole has worn down a bit quicker than I had hoped but my kiddo wears them everyday. I would buy them again for sure!
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Reviewed in the United States on November 30, 2025
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