Best in 7 days
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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
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Description
TP-Link TL-SM321A 1000Base-BX WDM Bi-Directional SFP ModuleUp to 20 km transmission distance with 9 125 m SMF (Single Mode Fiber) Bidirectional WDM communication on a single fiber Compatible with Small Form Pluggable Multi Source Agreement (SFP MSA) Supports Digital Diagnostic Monitoring (DDM) Hot swappable module design Work with TL SM321B as a pair PACKAGE CONTENTS Package Contents SFP Module TL SM321A Installation Guide HARDWARE FEATURES DDM Yes SFP MSA Yes Hot Swappable Yes MEDIA CONVERTER & MODULE
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
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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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.6 ★★★★★
Based on 1528 reviews
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Product Reviews
★★★★★ 5
Good brand!
Size: 500 Count (Pack of 2)
These are sturdy and thick/ right size for your needs. They are not flimsy. Made perfectly. They are soft cotton and stiff sticks. Safety is important so use by instructions. I get daily use for misc cleaning tasks.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Slider box makes me SOOO happy!
Size: 500 Count (Pack of 2), Size: 500 Count (Pack of 2)
I have not been able to find Q-Tips in the Slider box for several years! My old box I have been reusing was ready to be replaced. You may not think it's a big deal, but when you have limited options in the bathroom and they need to stand up on the side this is the perfect box. In fact, just about every bathroom I have had required me to stand up the box. Everyone knows how great Q-Tips themselves are so that’s why I focused on my delight that I found the slider box again! And as a bonus it is cheaper than buying locally!!
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Same great quality!
Size: 500 Count (Pack of 2)
Appreciate that these aren’t packaged with the heavy plastic.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Good value
Size: 500 Count (Pack of 2)
Work good. Good value
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Reviewed in the United States on April 2, 2026
★★★★★ 4
Great functionality
Size: 500 Count (Pack of 2)
Great q-tips. They are soft and easy to use. My only complaint was how they were shipped. They shipped with no box at all. Just a label slapped on it.
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Reviewed in the United States on September 29, 2025
