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Description
DTECH IOT9031 RS232/485/422 To TCP 3 In 1 Serial Server, CN Plug, IOT9031 RS232/485/422 To TCP1. Input voltage: DC 9V 70V 2. Input current: external power supply 1A 3. Power supply mode: wide voltage or POE power supply mode 4. Packing list: server x1, 12V 1A power supply x1, manual x1, foot pad x4 5. Size: about 9 x 7 x 2. 15cm Ethernet Standard: 1. Number of ports: one RJ45 standard network port 2. Speed: support 10 100M, full duplex half duplex adaptive Ethernet interface, compatible with 802. 3 protocol 3. Network protocol: IP, TCP, DHCP,
1. Input voltage: DC 9V-70V
2. Input current: external power supply 1A
3. Power supply mode: wide voltage or POE power supply mode
4. Packing list: server x1, 12V 1A power supply x1, manual x1, foot pad x4
5. Size: about 9 x 7 x 2.15cm
Ethernet Standard:
1. Number of ports: one RJ45 standard network port
2. Speed: support 10/100M, full-duplex/half-duplex adaptive Ethernet interface, compatible with 802.3 protocol
3. Network protocol: IP, TCP, DHCP, RTU, HTTPD Client
4. Buffer: send: 6K bytes, receive: 4K bytes
Serial port:
1. Number of ports: two
2. Interface standard: RS-232, RS-485, RS-422
3. Data bits: 5, 6, 7, 8
4. Stop bit: 1, 2
5. Check digit: None, Even, Odd, Space, Mark
6. Baud rate: 300-921.6kbps
7. Cache: Receive: 800 bytes
Software:
1. Virtual serial port: NetModuleConfig (windows2000 or higher (32/64 bit))
2. Configuration method: PC setting software
Features:
1. Connect the server device through the Intel network signal of the computer, transmit the remote RS232/485/422 communication function, the transmission distance is more than 1200m, and each converter can connect 32 RS232/485/422 interface devices
2. Using a high-speed processor chip, the signal is automatically sent and received without delay
3. Modbus RTU/TCP bidirectional transparent transmission
4. Support baud rate 300-921.6kbps data transmission, higher rate, faster data transmission
5. Built-in Ethernet media transport layer (MAC) and physical layer (PHY), support 10/100M, full-duplex/half-duplex adaptive Ethernet interface, compatible with network 802.3 protocol
6. DHCP automatically obtains IP address, DNS domain name access
7. Powerful POE power supply function, pay attention to choose POE switches with 4/5 and 7/8 power supply modes, each POE switch port can be connected to a server
8. External power supply 9-70V wide voltage, support a wide range of integrated circuits, three power supply methods, more convenient to use (POE 9-70V power supply, DC 12V 1A power supply, DC9-70V terminal power supply)
9. 4 working modes, TCP Server mode/TCP Client mode/UDP mode/HTTPD Client mode
10. Host computer virtual serial port configuration tool, easy to use
11. Widely used in automatic control system, access control system, attendance system, credit card system, POS system, power system, monitoring system, data acquisition system, bank self-service system, etc.
Specification:
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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
4.1 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
I only use these pillows now
Size: King (U.S. Standard), Number of Items: 2
We’ll see if they keep their shape so far they have. They cradle my head well and I don’t wake up with neck pain anymore like I used to with my other pillows. Even my JC Penny feather down pillows lost shape so I switched to these and they are perfect. Extra large is great for me as I tend to roll around when I sleep. Perfect for back and side sleepers like me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 3
Worth the money
Size: Queen (U.S. Standard), Number of Items: 2
So these pillows are for sure hotel pillows, great filling quality, support(not so much), no odor, they are worth the money, soft but just not the support I was looking for.
Nice fluffy, hotel pillows
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
5
Size: King (U.S. Standard), Number of Items: 2
All night sleeping
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
The best!!!!! Don’t let the price fool you.
Size: King (U.S. Standard), Number of Items: 2
I don’t know how much money I’ve spent over the years trying to find the perfect pillow. I ordered these to use only as decor on my bed with some fancy pillow shams I had ordered and guess what- they’re my very favorite pillows I’ve ever gotten for sleeping. How in the world is that possible? So I switched my expensive pillow to my fancy sham and sleep on this every night. Buy it right now!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
★★★★★ 5
Impressive Set of 4 King Pillows – Comfort Meets Quality
Color: Black, Size: King (Pack of 4), Color: Black, Size: King (Pack of 4)
Impressive Set of 4 King Pillows – Comfort Meets Quality
I recently upgraded to this 4-pack of king-size pillows (20 x 36 inches), and they’ve been a fantastic addition to the bedroom. Certified by Oeko-Tex, they’re suitable for all sleep positions—whether you’re a side sleeper like me or prefer your back or stomach.
The feel strikes a perfect balance between soft and supportive. The microfiber filling cushions your head and neck without going flat, so I wake up without the usual stiffness. They bounce back quickly after use and keep their shape well—just give them a quick fluff when needed, and they’re good to go. They do need about a day to fully expand once unboxed, but that’s expected.
The design also deserves a mention. The subtle stripe pattern gives the pillows a clean, upscale look—definitely not your average basic pillow. They’d make a solid gift, too.
Cleaning is easy: toss them in the washer on a gentle cycle with cold water, then either air dry or tumble on low. No hassle.
If you’re looking for a dependable set of king-size pillows that feel great and look sharp, these are worth it.
I also took a picture of it next to a standard pillow so that you could see the difference in the size from King to standard. Hope that helps, overall definitely buy these pillows if you are hesitant there is no need to be, these pillows are perfect in my opinion
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2025
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