Name: Oubit Serial Server,HF7121 Serial Server RS485 Ethernet Converter Module Serial Network Server Versatile Functionality
Brand: Oubit
SKU: 2W56U27O0HQR
Price: 41.79 CAD
Availability: InStock

Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Oubit Serial Server,HF7121 Serial Server RS485 Ethernet Converter Module Serial Network Server Versatile Functionality

Brand

Features 1.For MIPS MCU (32MB for SRAM) and 16MB Flash, based for Linux operating system. 2.Support for TCP / for IP / for Telnet / for Modbus TCP protocol 3.Support RS485 to 10 / 100M Ethernet data transmission, the maximum serial port speed is 460800 bps 4.Support 10 / 100M Ethernet adaptive 5.Support for webpage mode, for IOTService PC software easy configuration 6.Support data for TLS / for AES / for DES3 security encryption configuration 7.Support for registration and for Heart Beat function 8.Support for web / for IOTService OTA wireless upgrade Specification Item Type: Serial Port Server Model: HF7121 Function Explanation: Serial to Ethernet Core Resources: Processor: for Cortex-M3 Frequency: 96MHz Operating System: FreeRTOS FLASH Resources: 2MB RAM: 128KB Network Interface Parameters: Ethernet Standard: 802.3 Ethernet Interface Form: 1 RJ45 with LED Interface Standard: 10 / 100Base-T auto-negotiation Network Protocols: IP.TCP.UDP, DHCP, DNS, HTTPServer / Client, APP.BOOTP.AutoIP, ICMP, Telnet.uPNP Security Protocol (data Communication): for TLSv1.2.for AES-128Bit, for DES3, for SSL Network Port Protection: 2KV electromagnetic isolation Network Transformer: Integrated Maximum Number Of Connections: 3socket Serial interface parameters Number Of Serial Ports: 1 Interface Standard: RS485 Baud Rate: 2400-460800bps Serial Port Protection: Yes Product Features: Configuration Method: for WEB page, for CLI command, for XML file import, for Telnet configuration, for IOTService software WEB Page: Standard web page or custom web page IP Acquisition Method: DHCP or static IP, AutoP support Virtual Data Channel: Support Firmware Upgrade: Web page, IOTService software Registration Function: Support Heart Beat Function: Support Custom Script Function: Support Packet Filtering: Support Automatic Serial Framing: Support For ModbusRTU for Modbus TCP: Support NTP Function + Time Zone Setting: Support Parameter Import And Export: Support Reload Reset Interface: None Environmental Parameters: Working Temperature: -45-85 ℃ Storage Environment: -50-90 ° C, 5-95% RH (non-condensing) Power Parameters: Input Voltage: 5-36VDC Interface Form: RJ45 interface Power Protection: Yes Package List 1 x Serial Server 1 x Custom Network Cable 1 x Housing Fixing Bracket 1 x Rail Bracket 2 x Screw

Assembled Product Weight

Manufacturer Part Number

Assembled Product Dimensions (L x W x H)

Universal Product Code (UPC check)

Walmart Protection Plan

Protect it today, enjoy it for years - plan covers: • Mechanical and electrical failures • Breakdowns or failures from normal use • 24/7 virtual tech support and Fast online claims backed by our 3-Business-Day Service Guarantee • Includes 100% parts, labour and shipping - no deductibles

<a href="https://protection.asurion.com/protection-plan-canada/en-ca/quebecdisclaimer"target="_blank" rel="noopener noreferrer">Notice for Quebec Customers</a> Protect it today, enjoy it for years. Get low-cost, great value protection that goes beyond the manufacturer’s warranty, keeping your product covered when you need it most. Protection covers: • Mechanical and electrical failures. • Defects in workmanship and materials from normal use. • Fast, easy online claims backed by our 3-Business-Day Service Guarantee. • 100% coverage for parts, labour and shipping - no deductibles or additional cost (pay $0 for approved claims). How the Plan works: 1. Add a Plan to your order. 2. Plan details will be emailed to you after completing your purchase. 3. Start a claim online anytime or by phone. We’ve got you covered up to the amount you paid, whether it’s a replacement, a refund or repairs. You can cancel within 90 days of purchase for a hassle-free refund, according to your plan terms. Limitations and exclusions apply. For more details, <a target="_blank" href="https://i5.walmartimages.com/dfw/8822aef6-dd48/k2-_cdec6b62-68ea-409c-9f05-464b8da33b84.v1.pdf?icid… rel="noopener noreferrer">view the terms and conditions. </a>

Get peace of mind for pennies a day!

Protect your purchase

fulfillment

title_shipToHome_date_free_delivery