SKU: 23002156078

Cudy SM220 SFP-T Gigabit RJ45 Transceiver Module

Sale price$129.17 Regular price$143.52
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Description

Cudy SM220 SFP-T Gigabit RJ45 Transceiver ModuleThe Cudy SM220 SFP T 10 100 1000Mbps RJ45 Ethernet Module delivers dependable and high speed wired network connections for enterprise, SMB, and advanced home networking environments. Fully compliant with the SFP Multi Source Agreement (MSA), this copper transceiver supports Gigabit Ethernet and 10 100 1000BASE T standards as defined in IEEE 802. 3, ensuring seamless compatibility with a wide range of switches, routers, and network interface cards.

The Cudy SM220 SFP-T 10/100/1000Mbps RJ45 Ethernet Module delivers dependable and high-speed wired network connections for enterprise, SMB, and advanced home networking environments. Fully compliant with the SFP Multi-Source Agreement (MSA), this copper transceiver supports Gigabit Ethernet and 10/100/1000BASE-T standards as defined in IEEE 802.3, ensuring seamless compatibility with a wide range of switches, routers, and network interface cards. Whether upgrading infrastructure or expanding connectivity, the SM220 offers a cost-effective and flexible networking solution.

Engineered for efficiency, the hot-pluggable SFP footprint allows quick installation or replacement without service interruptions. Consuming just 1.05W typical power, the SM220 helps reduce energy costs while maintaining optimal performance. Its compact RJ45 connector assembly and fully metal enclosure not only enhance durability but also reduce electromagnetic interference (EMI) for stable and interference-free connections.

The SM220 supports bi-directional data rates up to 1.25Gbps over Cat 5 or better cabling, with 10/100/1000BASE-T operation in host systems equipped with a 1000BASE-X interface. Using the SFP's RX_LOS pin for link indication, it provides reliable connectivity feedback to network administrators. The robust electrical design ensures minimal latency and consistent throughput, making it ideal for bandwidth-intensive tasks like VoIP, video conferencing, and large-scale file transfers.

With an operating temperature range of 0°C to +70°C, the Cudy SM220 is suited for diverse networking environments, from climate-controlled server rooms to active office floors. Its RoHS-compliant, lead-free construction ensures eco-friendly operation, while the single +3.3V power supply simplifies integration into existing setups. Perfect for upgrading to gigabit speeds or enhancing network flexibility, this module offers a dependable and scalable solution for modern networking needs.

FEATURES:

Up to 1.25 Gb/s bi-directional data links
Hot-pluggable SFP footprint
Low power dissipation(1.05W typical)
Compact RJ-45 connector assembly
Fully metal enclosure, for lower EMI
RoHS compliant and lead-free
Single +3.3V power supply
10/100/1000 BASE-T operation in host systems with 1000BASE-X interface
1.25 Gigabit Ethernet over Cat 5 cable
Ambient Operating temperature 0°C to +70°C

SPECIFICATIONS:

Connector RJ45
Data Rate (Min/Max) 10Mbps/ 1000Mbps
Form Factor SFP
+3.3 V olt Electrical Power Interface Supply Current: 320mA(Typ)/ 375mA(Max)Input Voltage: 3.13V(Min)/ 3.3V(Typ)/ 3.47V(Max)Maximum Voltage: 4VSurge Current: 30mA
Supply Current 320mA(Typ)/ 375mA(Max)
Input Voltage 3.13V(Min)/ 3.3V(Typ)/ 3.47V(Max)
Maximum Voltage 4V
Surge Current 30mA
Low-Speed Signals, Electronic Characteristics SFP Output LOW (Min/Max): 0/ 0.5VSFP Output HIGH (Min/Max): host_Vcc -0.5/ host_Vcc + 0.3VSFP Input LOW (Min/Max): 0/ 0.8VSFP Input HIGH (Min/Max): 2/ Vcc + 0.3V
SFP Output LOW (Min/Max) 0/ 0.5V
SFP Output HIGH (Min/Max) host_Vcc -0.5/ host_Vcc + 0.3V
SFP Input LOW (Min/Max) 0/ 0.8V
SFP Input HIGH (Min/Max) 2/ Vcc + 0.3V
High-Speed Electrical Interface, Transmission Line-SFP Line Frequency: 125MHzTx Output Impedance: 100 OhmRx Input Impedance: 100 Ohm
Line Frequency 125MHz
Tx Output Impedance 100 Ohm
Rx Input Impedance 100 Ohm
High-Speed Electrical Interface, Host-SFP Single ended data input swing (Min/Max): 250/1200mVSingle ended data output swing (Min/Max): 350/800mVRise/Fall Time: 175 psecTx Input Impedance: 50 OhmRx Output Impedance: 50 Ohm
Single ended data input swing (Min/Max) 250/1200mV
Single ended data output swing (Min/Max) 350/800mV
Rise/Fall Time 175 psec
Tx Input Impedance 50 Ohm
Rx Output Impedance 50 Ohm
Operating Temperature (Min/Max) 0/70°C
Storage Temperature (Min/Max) -40/85°C
Serial Bus Timing, Requirements I 2C Clock Rate (Min/Max): 0/ 200 000Hz
I 2C Clock Rate (Min/Max) 0/ 200 000Hz
Product Dimensions 6.8 x 1.4 x 1.4 cm

WHAT’S IN THE BOX:

  • Cudy SM220 SFP-T 10/100/1000Mbps RJ45 Ethernet Module x1
Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 23002156078

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Lisa Bjornstad
West Palm Beach, US
★★★★★ 5
Perfect chair!
Size: 934-Z, Color: Blue, Size: 934-Z, Color: Blue
I have an adjustable-height desk (also purchased from Amazon) and needed a drafting chair for those times when my body gets tired of standing. This chair fits the bill and then some! I put it together myself; it took me about an hour, but would take me about half that next time, since now I know what to do (and what NOT to do!). All the parts were there; there are even spare parts (see photo). All the holes were drilled in exactly the right places, too, which isn't always the case when I buy things from Amazon (my standing desk is a great example). The chair fits me; I'm short (5'3.5"), and often the seats of furniture are too deep for me to rest my feet flat on the floor. The depth of the seat on this chair is just a little over 18 inches, and with the adjustable footrest ring, it's perfect. I don't think a tall or heavy person would fit in it, to be honest. But it's perfect for those of us who are vertically challenged. I love that it glides easily on my hardwood floors and that it turns 360 degrees. The chair comes in numerous luscious colors, so take your pick! It is very sturdy, has good lumbar support, and the seat and seat back are very comfortable. And the arms flip up, which was an absolute must when I was shopping for this chair. I got it on sale, too -- $109.00 -- and I'm delighted with this purchase.
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Reviewed in the United States on April 23, 2026
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PenLady
Lowell, US
★★★★★ 5
Excellent adjustable drafting chair
Size: 934-Z, Color: Blue
Excellent chair design, extremely comfortable and exceptionally easy instructions to follow making for simple assembly. Love the amply wide cushioned seat and ergonomic backrest. The height adjustment feature works perfectly as well as positioning of the foot ring . Having the ability to raise the arms is also a big plus! I highly recommend this product for attractive appearance, comfort features, functionality and operation. Really nice chair!
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Reviewed in the United States on April 13, 2026
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Sandra
Cuba, US
★★★★★ 4
Comfortable, stylish, and perfect for long work hours 💗✨
Size: 934-Z, Color: Pink
I bought this chair because I spend a lot of time working and needed something comfortable but also stylish, and I absolutely love it. Since I started using it, I feel much better support in my back thanks to the lumbar support. It makes a big difference, especially during long work hours. The adjustable footrest is also a feature I didn’t know I needed, but now I use it all the time. The flip-up armrests are very convenient because I can adjust them depending on what I’m doing or move them out of the way when needed. The pink color is beautiful and adds a soft, elegant touch to my workspace. It looks great in a modern home office. It feels sturdy, well-made, and very stable. Overall, it’s a great purchase that improved both my comfort and the look of my workspace.
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Reviewed in the United States on April 29, 2026
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Amazon Customer
Los Angeles, US
★★★★★ 5
All-around thumbs up!
Size: 934W-Z, Color: Black
So far, so awesome. Easy to assemble, comfortable, arrived quickly and is exactly what I was looking for. I have a tall work bench in my new studio so I needed a chair that we could allow me to sit higher than a regular office chair and allow me to get off my feet after standing on the concrete floor. Plus its a nice looking chair that I am sure will last a long time. I love the flip-up arms and the lumbar support. This is just right!
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Reviewed in the United States on May 8, 2026
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Danielle Chen
West Palm Beach, US
★★★★★ 5
Perfect Balance of Comfort, Support, and Style!
Size: 934-Z, Color: Black, Size: 934-Z, Color: Black
I’ve been using this chair for a few weeks now, and I’m genuinely impressed with how much of a difference it’s made in my workspace. The mesh back is one of my favorite features—it offers excellent breathability and prevents that sticky, overheated feeling you sometimes get with solid-back chairs, even after sitting for hours. The seat cushion is firm enough to give proper support but still has enough give to keep me comfortable through long workdays. It feels like the perfect middle ground between soft and supportive. The adjustable foot ring has been a complete game changer for me. I use a taller desk setup, and having somewhere to rest my feet makes a huge difference in posture and overall comfort. Whether I’m sitting upright for focused work or leaning back to read, it’s always at the right height. The flip-up armrests are another smart design choice. When I’m typing, I like to have them down for support, but when I’m done, I can flip them up and push the chair neatly under my desk—saving space and keeping things tidy. The casters roll smoothly on both hardwood and rugs, so I can move around easily without scraping the floor or getting stuck. The overall build quality feels solid and sturdy, with no wobbles or creaks. Assembly was surprisingly quick—everything was clearly labeled, the parts felt durable, and it only took me about 20 minutes from opening the box to sitting in the chair. The sleek, modern look is another big plus—it blends in perfectly with my home office décor without feeling bulky or taking up too much visual space. If you’re looking for a chair that combines comfort, ergonomic support, durability, and style, I can’t recommend this one enough. It’s equally great for work, studying, or just relaxing at your desk, and it’s definitely been worth every penny.
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Reviewed in the United States on August 12, 2025

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