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Telnet(81)
RS232 To Wifi, LAN Telnet Configuration Wifi Serial Server, Simple Installation 5-36vdc 160mhz 
$28.07
current price $28.07Estink
RS232 To Wifi, LAN Telnet Configuration Wifi Serial Server, Simple Installation 5-36vdc 160mhzFree delivery, in 5+ days
HF5122 Dual Serial to Ethernet Server: 2 RS232/RS485/RS422 Ports, 5-36VDC Power, MIPS 320MHz CPU, 4MB Flash/8MB SRAM, eCos OS, TCP/IP/Telnet, TLS/AES/DES3 Encryption, Web/OTA Configuration, 2 RJ45 
Clearance
Now $76.41
current price Now $76.41, Was $94.22$94.22
Unbranded
HF5122 Dual Serial to Ethernet Server: 2 RS232/RS485/RS422 Ports, 5-36VDC Power, MIPS 320MHz CPU, 4MB Flash/8MB SRAM, eCos OS, TCP/IP/Telnet, TLS/AES/DES3 Encryption, Web/OTA Configuration, 2 RJ45Free delivery, in 5+ days
TP-Link JetStream TL-SG3428X - V1 - switch - managed - 24 x 10/100/1000 + 4 x 10 Gigabit SFP+ - rack-mountable 
$438.85
current price $438.85TP-Link
TP-Link JetStream TL-SG3428X - V1 - switch - managed - 24 x 10/100/1000 + 4 x 10 Gigabit SFP+ - rack-mountableDelivery, in 5+ days
96MHz Stable RS485 To Ethernet, NTP Function Serial Server, IOTService OTA Wireless Upgrade For MCU 16MB Flash Operating System 
$32.14
current price $32.14Estink
96MHz Stable RS485 To Ethernet, NTP Function Serial Server, IOTService OTA Wireless Upgrade For MCU 16MB Flash Operating SystemFree delivery, in 5+ days
Dell Force10 S55T 44 Port GbE 4 Port SFP Managed Ethernet Switch 
$191.39
current price $191.39Dell
Dell Force10 S55T 44 Port GbE 4 Port SFP Managed Ethernet SwitchDelivery, in 5+ days
Ethernet Serial Server,HF7121 Serial Server RS485 Serial Network Server R Ethernet Sturdy Construction 
Reduced price
Now $31.09
current price Now $31.09, Was $37.99$37.99
GashomeCA
Ethernet Serial Server,HF7121 Serial Server RS485 Serial Network Server R Ethernet Sturdy ConstructionFree delivery, in 5+ days
Stable Durable Safe Serial Server, Serial Server, TLS V1.2 For AES-128Bit DES3 SSL 
Now $55.50
current price Now $55.50, Was $111.00$111.00
Estink
Stable Durable Safe Serial Server, Serial Server, TLS V1.2 For AES-128Bit DES3 SSLFree delivery, in 5+ days
Hilitand Wifi Serial Server, RS232 To Wifi, Remote Parameter Batch Import And Export 160mhz 5-36vdc For IP, TCP, UDP, DHCP, DNS HTTP, Auto IP, Modbus TCP 
$28.96
current price $28.96Hilitand
Hilitand Wifi Serial Server, RS232 To Wifi, Remote Parameter Batch Import And Export 160mhz 5-36vdc For IP, TCP, UDP, DHCP, DNS HTTP, Auto IP, Modbus TCPFree delivery, in 5+ days
HF5122 2-Port Serial to Ethernet Server with RS232/RS485/RS422, 5-36VDC Power Input, MIPS 320MHz Processor, 4MB Flash/8MB SRAM, eCos OS, TCP/IP/Telnet Support, TLS/AES/DES3 Encryption, Web & PC
Reduced price
Now $100.05
current price Now $100.05, Was $111.17$111.17
Unbranded
HF5122 2-Port Serial to Ethernet Server with RS232/RS485/RS422, 5-36VDC Power Input, MIPS 320MHz Processor, 4MB Flash/8MB SRAM, eCos OS, TCP/IP/Telnet Support, TLS/AES/DES3 Encryption, Web & PCFree delivery, in 5+ days
R Ethernet Router,RS485 to Ethernet Serial Rail Mounting R Ethernet Serial Server Ethernet Serial Server Breakthrough Technology 
Reduced price
Now $54.59
current price Now $54.59, Was $66.68$66.68
AdhoreCA
R Ethernet Router,RS485 to Ethernet Serial Rail Mounting R Ethernet Serial Server Ethernet Serial Server Breakthrough TechnologyFree delivery, in 5+ days