TP-LINK 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550 nm, RX: 1310 nm, Max. Cable Length 2 KM
SKU: 69476954837

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

$52.33 $58.14
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Description

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

TP-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 μm 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 nm RX: 1310 nm Power Supply 3.3 V Safety & Emission FCC, CE Cabel Single-Mode Fiber Fiber Type 9/125 μm Single-Mode Max. Cable Length 2 KM Data Rate 1.25 Gbps Port Type LC Simplex Environment Operating Temperature: 0–70 °C (32–158 °F) Storage Temperature: -40–85 °C ( -40–185 °F) Operating Humidity: 10–90% RH, Non-Condensing Storage Humidity: 5–90% RH, Non-Condensing

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SKU: 69476954837

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4.0 ★★★★★
Based on 1225 reviews
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Verified Purchase
SemoTech
Whiting, US
★★★★★ 4
Want to love it but for the price it could have been much better
Color: Phantom Gray
This is one of the most expensive chargers I have bought in a long time, but given it comes from Anker, a very reputable and trusted brand with top quality, I bit the bullet and had high expectations. It is a unique design whereby it uses an LCD screen to display the charging wattage in real-time for 3 devices, and also connects via bluetooth to the Anker app for customization and charging data visualization. The design is elegant (would have been even nicer to have different color options for the metal arms) and as unique as the price, while it seems to work really well with the tested Apple Watch Ultra 3 and an iPhone 17 Pro Max plus a case of Apple AirPods. The best feature of the phone charger part is peltier cooling, the latest advancement in optimized wireless charging, which uses a built-in peltier cooling system with a fan and thus prevents the phone from overheating which in turn extends battery life. So given the phone charger is 25W and to assist in the cooling, there is a built-in fan behind the phone charging puck and while not very loud it is audible at night in a very quiet room like a bedroom. If placed on an office desk I am sure you would not hear it. The unit also has a night mode accessible via a touchscreen that stops the fan completely for full silence, but also reduces the charging power and cooling to compensate. The LCD display shows real-time charging power for each device and also has a "screen saver" that shows a clock if so desired with 3 themes. Of course there is Bluetooth as well so the Anker app can be used to remotely see the status of the charger and change some settings but you have to be in Bluetooth range. I knocked off one star for the high $180 price, which I think is excessive, as well as for the fact that the Apple watch charger is limited to 5W. Given the price and that it is a brand new product, Anker should have accounted for the new Apple Watch Ultra 3 models fast charging capabilities, and reviewed Apple's tests with high-power chargers. Anker support is as always outstanding, and overall this is a very high-end and elegant looking charger, but be aware of the nuances mentioned. I am going to keep it for use in my office but not in my bedroom.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
L
Verified Purchase
Linda D. Straw
Houston, US
★★★★★ 5
Works great and will last
Color: Phantom Gray
A quality product that lives up to its advertising. Sturdily built, heavy enough to stay in place, good looking and very fast charging.
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Reviewed in the United States on April 2, 2026
M
Verified Purchase
Mikke
Los Angeles, US
★★★★★ 5
For latest iPhone and Apple Watch together with AirPods Pro 3 must have
Color: Phantom Gray
Honestly this is a piece of hardware that is totally worth the money, one of the kind on the market, nothing like that even exist. Pro: TEC active cooling (really quiet and can go night mode with setup), smart connectivity it actually interacts with your phone for optimize charging and maintenance. Compact design travel friendly. And I don't have to mention that it can do phone, Apple Watch and AirPods. The advertise 25 W charging nominal, tested it showed 38 W with latest iPhone. Against: very pricey, advanced features supported mainly with the latest Apple hardware. Conclusion: if you have the latest iPhone and Apple Watch together with AirPods Pro 3 this is a product for you.
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Reviewed in the United States on March 3, 2026
B
Verified Purchase
bobbyinpa
Battle Creek, US
★★★★★ 5
Best wireless charging stand for Apple products.
Color: Phantom Gray
Connects to phone via Bluetooth, multiple settings can be used with the Anker app that you can download for free. Charges a watch ultra in 20 minutes, charges the iPhone 17 pro max in 35 minutes and charges your pods in 40 minutes. Charger for phone tilts for view and has strong MagSafe. None of my equipment becomes overheated and no issues with charging. Comes with ac plug and long USB C cable.
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Reviewed in the United States on March 5, 2026
G
Verified Purchase
GhostFace
Louisville, US
★★★★★ 5
Secure Mount With Premium Feel
This phone mount feels incredibly sturdy once installed. No shaking or movement while driving, even on rough roads. The design looks clean and factory installed instead of bulky like a lot of other mounts. It holds the phone securely and keeps it easy to access for navigation.
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Reviewed in the United States on May 15, 2026

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