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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
NTK591LB-CW45 Ciena® Compatible Transceiver CWDM SFP 1000Base (1450nm, SMF, 40km, LC, DFB, DDMI)NTK591LB CW45 Ciena Compatible Transceiver CWDM SFP 1000Base (1450nm, SMF, 40km, LC, DFB, DDMI) ATGBICS Ciena compatible NTK591LB CW45 SFP 1000Base CWDM form factor network transceiver supports a distance of up to 40km over single mode fibre (SMF) using a wavelength of 1450nm 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
NTK591LB-CW45 Ciena® Compatible Transceiver CWDM SFP 1000Base (1450nm, SMF, 40km, LC, DFB, DDMI)
ATGBICS Ciena® compatible NTK591LB-CW45 SFP 1000Base-CWDM form factor network transceiver supports a distance of up to 40km over single-mode fibre (SMF) using a wavelength of 1450nm 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 Ciena® NTK591LB-CW45 and we proudly offer a compatibility guarantee and limited lifetime warranty. Our rigorously tested products record a unique traceable serial number and are fully compatible 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
4.6 ★★★★★
Based on 1766 reviews
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Product Reviews
★★★★★ 5
Quality and Comfort
Size: 12, Color: White
My husband is a Cole Haan shoe person and what we love mostly is the comfort and quality and style.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Size seems spot on shoe is beautiful
Size: 12, Color: White
These are beautiful shoes. A great cross between the ubiquitous flat as a board shoes like vans and tennis shoes. More comfortable than the super flat shoes and more formal than sneakers. Very soft leather. Not much arch support and I don't know if an insert would fit well. I am between an 11.5 and 12 in most brands (actual foot length from heel to tip of big toe is 11 and 1/8 inches). These fit perfectly in a 12 with room for comfort. An 11.5 probably would fit but snugly. I do not agree that they should be sized down at least based on my experience. If you can get these for under eighty dollars like I did they are well worth it. I'll be wearing them all summer.
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Reviewed in the United States on May 15, 2021
★★★★★ 4
Weightless, well made. But there are problems with size
Size: 8.5, Color: White
I bought it for a teenager, for size 81/2. This, according to the dimensions on the page, is 25.9 centimeters. They came, the size was indicated correctly, but they are large for the child. Very large. They fit me, size 10. The child is disappointed.
Well made, look neat on the foot. Almost weightless
But I can't give the maximum rating. I wish the seller to deal with the size grid.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Amazing Shoe!
Size: 9 Wide, Color: Blazer Blue Hand Stain
Amazing shoe!! Comfortable to wear for long periods of time! Highly recommend!! 👍🏾
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Reviewed in the United States on November 17, 2025
★★★★★ 5
Calzado elegante para oficina de excelente calidad
Producto de excelente calidad. La entrega fue rápida y el empaque llegó en perfectas condiciones. Cumple completamente con lo descrito en la publicación.
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Reviewed in the United States on April 28, 2026