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Description
SFP-GSS-40KRX Advantech® Compatible Transceiver SFP 1000Base-BX-D (Tx1550nm/Rx1310nm, Single Strand, SMF, 40km, LC, DOM, Ind Temp)SFP GSS 40KRX Advantech Compatible Transceiver SFP 1000Base BX D (Tx1550nm Rx1310nm, Single Strand, SMF, 40km, LC, DOM, Ind Temp) ATGBICS Advantech compatible SFP GSS 40KRX SFP 1000Base BX form factor network transceiver supports a distance of up to 40km over single mode fibre (SMF) using a wavelength of 1550 1310nm via an LC Simplex connector. This product operates within an industrial temperature range. Digital optical monitoring (DOM) support is
SFP-GSS-40KRX Advantech® Compatible Transceiver SFP 1000Base-BX-D (Tx1550nm/Rx1310nm, Single Strand, SMF, 40km, LC, DOM, Ind Temp)
ATGBICS Advantech® compatible SFP-GSS-40KRX SFP 1000Base-BX form factor network transceiver supports a distance of up to 40km over single-mode fibre (SMF) using a wavelength of 1550/1310nm via an LC Simplex connector. This product operates within an industrial 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 Advantech® SFP-GSS-40KRX 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
4.4 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Great quality
Size: Large, Color: True Gray Heather Assorted 2 (6-pairs)
The best socks, cotton quality
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Reviewed in the United States on June 28, 2025
★★★★★ 5
Great sock for everyday
Size: Large, Color: Black/Gray (6 Pairs)
So these are awesome but they are slightly thinner than older versions, shorter too. Just FYI if you a long time UA customer.
If you have never had their socks, I love them personally and only like one other brand better. They aren’t overly thick and they allow your feet to breath. I never have sweaty feet in these even in my warm boots. I also like that they don’t cut into my feet or get holes in the toes over long terms. The only reason I’ve thrown these out has been fraying near the ankle or someone (kids) thieving them.
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Reviewed in the United States on December 28, 2019
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026