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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- Free Standard Shipping on $100+ Orders to the USA.
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 1510 reviews
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Product Reviews
★★★★★ 5
Bought second one
Color: Navy, Size: Medium
I bought the black T-shirt about a month ago and really liked the quality the fabric is soft, the fit is great, and it holds up well after washing. So I decided to get the same one in dark blue.Very satisfied with the purchase
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Reviewed in the United States on December 9, 2025
★★★★★ 5
Mock shirt for everyday wear.
Color: Gray Green, Lotus Pink, Sky Blue, Size: X-Large
Love how soft the fabric is and wears very well. Very happy with purchase and have bought other colors as well.
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Reviewed in the United States on May 22, 2026
★★★★★ 3
Amazon brand looks bad
Color: White, Light Gray, Black, Size: X-Large
II think the quality is poor the fabric is thin and the moc collar won't stand up
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Reviewed in the United States on July 20, 2025
★★★★★ 5
Satisfied
Color: Brown, White, Black, Size: Large
Nice fit and comfortable
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Nice material, holds collar shape well.
Color: Wine Red, Navy Blue, Black, Size: Medium
Good value for the money. You can machine wash and dry on low heat, in my opinion. Laying flat is too much of a pain.
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Reviewed in the United States on January 30, 2026
