![IoT Base Board for Raspberry Pi Compute w/ PoE, 4G [SL4]](https://cdn.shopify.com/s/files/1/0914/9972/5181/files/b1205042-ccf4-49e2-9472-d028ad2ff44b.jpg?v=1753832276)
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Description
IoT Base Board for Raspberry Pi Compute w/ PoE, 4G [SL4]The Compute Module PoE 4G Board is an industrial grade IoT base board designed for Raspberry Pi Compute Module 3 3+ (not included). It features communication functions including global 4G 3G 2G cellular, PoE Ethernet, and WiFi wireless. There are also various industrial isolated interfaces such as CAN, RS485, RS232, ADC, and GPIO, which make it an ideal choice for sorts of industrial IoT applications. al choice for either evaluating new rising
The Compute Module PoE 4G Board is an industrial grade IoT base board designed for Raspberry Pi Compute Module 3 / 3+ (not included). It features communication functions including global 4G/3G/2G cellular, PoE Ethernet, and WiFi wireless. There are also various industrial isolated interfaces such as CAN, RS485, RS232, ADC, and GPIO, which make it an ideal choice for sorts of industrial IoT applications.al choice for either evaluating new rising technologies, or simply communicating/positioning via multiple ways.
Features
- Compatible with Raspberry Pi CM3 / CM3 Lite / CM3+ / CM3+ Lite
- Adopts SIM7600G-H global 4G/3G/2G communication module
- 10/100M auto-negotiation Ethernet port, with PoE enabled
- Supports 2.4GHz WiFi wireless connection
- USB HUB and USB TO UART, allows connecting more USB devices
- Provides various industrial isolated interfaces: CAN/RS485/RS232/ADC/GPIO/RTC
- Onboard multi video/audio ports like HDMI/DSI/CSI
Specifications
| NETWORK | |
|---|---|
| Ethernet | 10/100M auto-negotiation Ethernet port, with PoE enabled, RJ45 connector |
| Cellular | supports global 4G/3G/2G communication (via onboard SIM slot) |
| WiFi | supports 802.11b/g/n, 2.4GHz |
| VIDEO / AUDIO | |
| Camera | 2x CSI ports, can be used simultaneously |
| HDMI | HDMI HD port |
| Display | DSI port, for connecting Raspberry Pi DSI display |
| Audio | 3.5mm audio jack, stereo output |
| Speaker | 4PIN speaker connector, supports 8Ω 5W speaker |
| INDUSTRIAL ISOLATED INTERFACES | |
| 1 × RS232 | DR9 (male), isolated, with TVS protection, anti-surge, and ESD protection |
| 1 × RS485 | screw terminal, isolated, with 600W lightning-proof, anti-surge, and 15KV ESD protection, allows using 120Ω terminal resistor |
| 1 × CAN | screw terminal, isolated, lightning-proof, and ESD protection, allows using 120Ω terminal resistor |
| 4 × GPIO | screw terminal, isolated, 2 channels as isolated input, 2 channels as isolated output |
| 1 × ADC | screw terminal, isolated, 16-bit, 860SPS |
| COMMON USED PORTS | |
| 2 × USB2.0 | USB type-A connector |
| 1 × USB SLAVE | for burning system image into CM3 / CM3+ |
| 1 × USB TO UART | connects to Raspberry Pi serial port by default, configurable by jumper |
| 1 × RTC | real time clock |
| 1 × Micro SD card slot | for Micro SD card with pre-burnt system (CM3 Lite / CM3+ Lite only) |
| 1 × SIM slot | supports standard 4G/3G/2G cellular SIM card |
| OTHER | |
| Power supply | DC 7~36V wide voltage range input |
Designed For CM3 / CM3+ Series
Supports Raspberry Pi Compute Module CM3 / CM3 Lite / CM3+ / CM3+ Lite. Onboard Various Import Resources, Allows Connecting Display, Camera, USB Devices...
Rich & Handy Interfaces
Various Industrial Isolated Interfaces: CAN/RS485/RS232/ADC/GPIO/RTC
PoE Ethernet, 4G Cellular, WiFi Connectivity
- PoE Power Over Ethernet Features, 802.3af-Compliant
- Global 4G/3G/2G Cell Communication, Up To 150Mbps Data Rate
- 2.4GHz WiFi Wireless Connection
Aluminum Alloy Heatsink
Effective Heat Dissipation
What's On Board
-
Compute Module socket
for connecting Raspberry Pi Compute Module CM3 / CM3 Lite / CM3+ / CM3+ Lite -
PoE enabled Ethernet port
10/100M auto-negotiation, with PoE Power Over Ethernet features - USB Ports
- HDMI Ports
- 3.5mm audio jack
- Dual-channels speaker connector
-
USB SLAVE
allows you to burn system image into CM3 or CM3+ -
USB TO UART
for serial debugging -
DC power input
supports 7-36V power supply -
DSI display port
for connecting Raspberry Pi LCD -
CSI camera port
for connecting Raspberry Pi Camera -
RTC real time clock battery holder
supports rechargeable Li cell ML1220 - 4G antenna connector
- WiFi antenna connector
-
Isolated ADC
ADC differential input -
Isolated 5V power
max output current 100mA -
Isolated GPIO
allows controlling / detecting devices via GPIO - Isolated RS485 interface
- Isolated CAN interface
- Isolated RS232 interface
-
SIM slot
supports standard 4G/3G/2G SIM card -
Micro SD card slot
insert a Micro SD card with pre-burnt system, to start up CM3 Lite / CM3+ Lite variant -
SIM7600G-H communication module
supports 4G/3G/2G communication and GNSS function -
WiFi module
supports 2.4G WiFi connection - Buzzer
-
DS3231
high precision RTC chip, I2C bus -
Raspberry Pi indicator
ACT: Raspberry Pi operating status indicator
PWR: Raspberry Pi power indicator -
SIM7600G-H indicator
NET: network indicator
STA: status indicator -
User LED
handy for I/O output testing, or program running status monitoring - Serial port connection setting
- Volume adjustment
-
PoE configuration
DIS: disable PoE
EN: enable PoE - ADC chip power supply selection
- RS485 CAN terminal resistor selection
Dimensions
Resources
Product Wiki , includes sample source code
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
4.5 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Durable
Color: Nude, Size: Women 9-13
These are form-fitting and durable. Wearing these keeps the skin moisturizer in place so it can be effective.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026
★★★★★ 5
Great Results
Color: White, Size: Women 9-13, Color: White, Size: Women 9-13
The Jfrhuds Moisturizing Silicone Socks work very well. I ordered the white 2-pack in the large size 9-13, and each came packaged in an individual zipper bag. I wear a women's size 9-9.5, and they fit me perfectly. I can see how they have enough stretch to fit larger sizes easily and comfortably.
These socks are a lot thicker and heavier than I expected. They are rubbery with non-slip treads on the bottom. As soon as I put them on my feet, they actually felt very moisturizing and almost wet, even though I had not put moisturizer on my feet first. Plus my feet felt cold at first. It was different than I expected, I had never worn this type of sock before, and it was an interesting sensation.
They work great, and I am sold on the benefits of these socks. I wear them to sleep at night and dodn't walk very far in them. They seem pretty sturdy, but I don't want to push it and will just use them for their intended purpose. My feet weren't super dry or cracked, but the socks really helped revive them and make them super soft again. I love them; they are great for self-care and would also make a wonderful gift.
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Reviewed in the United States on April 20, 2026
★★★★★ 1
Not durable
Color: Nude, Size: Women 9-13
Only used two of them so far. One sock lasted nearly 3 wears. The other broke before I could finish wearing it the second time. Basically useless junk.
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Reviewed in the United States on April 2, 2026
★★★★★ 4
Thick Silicone Moisturizing Socks
Color: Nude, Size: Women 9-13, Color: Nude, Size: Women 9-13
★★★★☆ Thick Silicone Moisturizing Socks
I ordered these silicone moisturizing socks to try for dry heels. Unlike typical fabric spa socks, these are made entirely of soft silicone and are noticeably thicker and very stretchy.
When I first took them out of the package there was a visible fold line in the silicone. It appears to be from how they were folded in the packaging rather than a defect in the material. The silicone itself feels durable and flexible.
The design works like a full silicone sleeve that traps moisturizer against your skin. I applied Aquaphor first and then slid these on so the moisture stays in contact with the skin longer. One thing I noticed right away is that the silicone feels cool when you first put them on, which is actually pretty comfortable.
The bottoms have a zig-zag textured pattern that gives some grip if you need to stand briefly, though these seem better for relaxing while moisturizer absorbs rather than walking around much.
The ankle opening is the tightest part of the sock. It stretches, but it’s noticeably snug compared to the rest of the silicone, which helps keep them from sliding off.
For sizing reference, I wear a women’s 7.5–8 shoe and the size Large fits comfortably. There’s plenty of stretch and I can wiggle my toes easily, so they should accommodate larger feet as well.
They’re also easy to clean. After using them you can simply wash them with soap and water and let them dry completely before storing or using them again.
Overall these appear well made with thick silicone and plenty of stretch. If you use moisturizing socks or heel treatments, these work well for keeping lotion in place while your feet absorb it.
Since this set comes with two pairs for about $10, the price seems pretty reasonable for something reusable like this.
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Reviewed in the United States on March 6, 2026
★★★★★ 5
HEALTH & BEAUTY
Flavor Name: XL silicone socks 2 pairs
LOVE IT
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Reviewed in the United States on April 13, 2026