TP-LINK 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550 nm, RX: 1310 nm, Max. Cable Length 2 KM

TP-LINK 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550 nm, RX: 1310 nm, Max. Cable Length 2 KM

Marsoni

M251S

$34.99

Get it in 3 business days with 1 day shipping. Friday, May 29

TP-LINK 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550 nm, RX: 1310 nm, Max. Cable Length 2 KMTP Link 1000Base BX WDM Bi Directional SFP Module (TL SM321A 2) Adopts the latest standard 1000Base BX Up to 2 km transmission distance in 9 125 m SMF (Single Mode Fiber) Compatible with Small Form Pluggable Multi Source Agreement (SFP MSA) Supports Digital Diagnostic Monitoring (DDM) Supports Hot Swappable HARDWARE FEATURES DDM Yes SFP MSA Yes Hot Swappable Yes MEDIA CONVERTER & MODULE Standards and Protocols IEEE 802. 3z, TCP IP Wave Length TX: 1550

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I've been buying Woxers, but theyre super expensive for what youre getting. These are similar in feel and style so i switched over. Another nice thing is i dont have to deal with wedgies like i do with the woxers. Theyre not perfect for wearing when its hot, youre still gunna sweat and these dont wick away sweat super well. But i havent seen many brands that do, and these are not the worst. Im 5'7" and 145lbs and these are comfy and tight enough but not snug. They still leave a bit of indentation on the love handles. You CAN tell that youre wearing them under pant if they are tight.

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Reviewed in the United States on May 11, 2026

An old SciFi fan.

Lexington, US

★★★★★ 5

A Traditional Tee that's Fun to Wear

Size: Large, Color: Navy, Size: Large, Color: Navy

Here is a classic fitting tee-shirt that combines a soft feel along with a rugged outdoor look. A top priority for me is comfort and this graphic tee is 100 percent cotton that moisture-wicks sweat away and is non-itchy! Made by Pioneer Camp, the navy blue top is a good fit in medium that is not too tight nor baggy. Staying cool is important and the micro-ventilation fabric is wonderful whether I'm at the gym doing aerobics or running errands. There is a Mont Blanc graphic logo that adorns the upper right corner of this tee, however, it's small and unobtrusive. So, whether you are into hiking, traveling, yoga or just lounging, here's a short sleeve tee that delivers.

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Reviewed in the United States on May 8, 2026

Lana

Dallas, US

★★★★★ 4

Soft and breathable

Size: Large, Color: Navy, Size: Large, Color: Navy

Nice and comfy tee. I love the minimalist design and how fresh it feels. I ordered a size Large and I’m 5’1, 151lbs, jeans size usually 8/29. It fits on the fitted side but with extra room for comfort. This a nice t shirt for daily wear or outdoors. I don’t hike a lot so I’m not sure what people look for in hiking tops. I love the color scheme and quality; and it’s 100% cotton! I do feel like it’s slightly overpriced but if you’re looking for a good quality tee or something to gift I do think it’s worth it.

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Reviewed in the United States on April 20, 2026

Amazon Customer

Dallas, US

★★★★★ 5

A great shirt for me to wear to work

Size: Medium, Color: Navy, Size: Medium, Color: Navy

I ordered this shirt to wear to work because I’m pretty active at my job and need to move around comfortable. I’m 5’0 and around 115lbs, but people with the same measurements can have different body types - however I will say that the shirt fit me very well, had a loose fit, but not too loose, just comfortable and easy to move around while wearing. I wouldn’t say it did anything different in warm temperatures than any other shirt I own, but at least it don’t make me hotter. The fabric feels nice and good quality. After a handful of washes, the color still looks great so I have hopes that it won’t fade and look worn right away. It honestly looks exactly like the pictures. The majority of clothing items I’ve ordered off Amazon had left me very disappointed, so this was a very pleasant surprise!

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Reviewed in the United States on April 29, 2026