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Description
10GBASE-ER-SFPP-DW3977 Extreme Enterasys® Compatible Transceiver DWDM SFP+ 10GBase C-Band Channel DW47 100GHz (1539.77nm, SMF, 40km, LC, DOM)10GBASE ER SFPP DW3977 Extreme Enterasys Compatible Transceiver DWDM SFP+ 10GBase C Band Channel DW47 100GHz (1539. 77nm, SMF, 40km, LC, DOM) ATGBICS Extreme Enterasys compatible 10GBASE ER SFPP DW3977 SFP+ 10GBase DWDM form factor network transceiver supports a distance of up to 40km over single mode fibre (SMF) using a wavelength of 1539. 77nm via an LC Duplex connector. This product operates within a commercial temperature range. Digital optical
10GBASE-ER-SFPP-DW3977 Extreme Enterasys® Compatible Transceiver DWDM SFP+ 10GBase C-Band Channel DW47 100GHz (1539.77nm, SMF, 40km, LC, DOM)
ATGBICS Extreme Enterasys® compatible 10GBASE-ER-SFPP-DW3977 SFP+ 10GBase-DWDM form factor network transceiver supports a distance of up to 40km over single-mode fibre (SMF) using a wavelength of 1539.77nm 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 Extreme Enterasys® 10GBASE-ER-SFPP-DW3977 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
4.2 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 4
Comfortable fit for slip-in fabric shoes
Size: 14, Color: Black/Black
My first experience with Marc Joseph. I typically purchase dress and casual work shoes from Florsheim and occasionally Rockport. I'm giving these four stars because the initial fit and feel appear solid. Depending on the shoe brand I wear a size 14 or 15. My feet are slightly wide but I don't alway need wide fit. These size 14 fit well with wide enough toe box. I've tried slip in shoes before and they just don't feel right. These somehow work and there is no heel slip. My only reservation is the high lip on the heel for slip-in and hope they dont catch pant hems. I gave 4 stars because I'll have to determine durability. Granted they are a light fabric shoe with a soft rubber tread. I'd like them to last for at least 6 months..and use them for business casual work wear during warm weather.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Stylish and comfortable.
Size: 8 Wide, Color: Black/Black
Shoes look great and fits well. Definitely recommend pocking another pair.
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Reviewed in the United States on May 10, 2026
★★★★★ 3
Narrow for an 11.5W
Size: 11.5 Wide, Color: Navy
Nice look and material but very narrow for a wide, had to return
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Reviewed in the United States on February 25, 2026
★★★★★ 5
NIce Shoes
Size: 10, Color: Black
Very nice quality and comfort
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Great shoe.
Size: 11.5, Color: Navy
Perfect fit. Stylish comfortable.
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Reviewed in the United States on May 2, 2026