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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
4.0 ★★★★★
Based on 44 reviews
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Product Reviews
★★★★★ 3
Dies after a Year
Color: 5566-ZP-white face
Watch worked fine for about a year, then just stopped working - just like that. No amount of shaking or gentle impacts would get it to start ticking again.
I'd also say my biggist issue with it was it was always difficult to tell which hand was the second hand and which hand was the minute hand since they're both the same color and thickness. Wish the hour and minute hands were a little thicker so they'd stand out a little better and/or that the minute hand was a different color so it was offset. Resulted in having to study the watch to get the time instead of a quick glimpse to see what time it was. Irritating after a while.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
They were lightweight and attractive
Color: 5535-HP-white
Sleek and attractive
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Blue faced watch.
Color: 5535-ZP-blue
Looks great
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Good all around!!
Color: Dark Brown band & Rose Gold bezel & White dial
So far this is a very nice watch, light, thin, keeps good time, looks nice, nice band, nice price!!
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Good quality
Color: Mesh Strap watch balck blue
Beautiful watch,
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Reviewed in the United States on May 9, 2026