Best in 7 days
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Description
Cisco QSFP-40G-SR-BD Compatible 40GBASE-SR SWDM4 QSFP+ BiDi 850/880/910/940nm 300m DOM Duplex LC/UPC MMF Optical Transceiver ModuleThe Cisco Compatible 40GBASE SWDM4 Bi Directional QSFP+Transceiver is designed for use in 40 Gigabit Ethernet links over duplex multimode fiber (MMF. This transceiver is compliant with the QSFP+ MSA and IEEE 802. 3ba XLPPI electrical interface. The SWDM4 transceiver enables reuse of its existing 10G duplex MMF infrastructure for migration to 40G with a path toward 100G. Digital diagnostics functions are available via an I2C interface, as specified by
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 2287 reviews
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Product Reviews
★★★★★ 3
Thin and low Quality, it's ok for the price
I bought it because it looks good in the photos, but the fabric is very thin—you can almost see right through to your back. While that wouldn't be a problem if you have an athletic build, if you're like me—that is, average—I wouldn't recommend it. The fabric is very thin and not of particularly high quality. It might be worth it for the price, but again, the material is thin.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Awsome
Good fabric, non itchy, decent fitting and perfect size overall very good for formal or party wear
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Ribbed sleeves and bottom
Way nicer than a t-shirt for the same money.
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Comfortable, Light Weight, Good Looking
Delivered quickly, exactly as pictured. The shirt fits well. I like the sweater bottom as opposed to a normal t-shirt bottom. The shirt looks dressier. A good value.
I'd buy again.
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Reviewed in the United States on August 2, 2025
★★★★★ 5
Great Quality Shirt That Looks More Expensive
Color: Cream, Size: Medium
This is my 2nd COOFANDY purchase for my husbands wardrobe!
Really impressed with this Knit Button Down Textured Polo Shirt. The material feels soft and breathable, and the textured design gives it a more elevated look than a basic polo. It fits well, looks great dressed up or casual, and is perfect for vacations, dinners, or summer events. Excellent quality for the price.
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Reviewed in the United States on May 26, 2026
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