Menu

Free Gift w/ AMD

Gamer Community

Newegg Business

Your Browsing History

Home
Computer Systems
Search Results: "rs-4"

Computer Systems

Did You Find It? Save this search

In Stock
ONOFF

Sold by Newegg
ONOFF

Make an Offer
ONOFF

New
ONOFF

Department

Gaming Laptops

Tablets

2 in 1 Accessories

All Laptop

Desktop Computer

Docking Station

Gaming Desktop PC

Show More

Brands

INDMEM
ARCTIC
Apple
AUTENS
Astro Gaming
BoYata

Show More

Price

to

$10 - $25
$25 - $50
$50 - $75
$75 - $100
$100 - $200
$200 - $300

$300 - $400
$400 - $500
$500 - $750
$750 - $1000
$1000 - $1250
$1250 - $1500
$1500 - $2000
$2000 - $2500
$2500 - $3000
$3500 - $4000

Show More

Sold by

Newegg

All Top Brands

Top Brands

Availability

In Stock

Condition

New
Recertified
- Refurbished
- Manufacturer Recertified

Useful Links

Direct from Manufacturer
Cryptocurrency Payment Accepted
Make an Offer
Warranty
- Less than 1 Year
- 1 - 3 Years
Free Shipping
Discount Item

Volume Savings

Show More

Any questions? Our AI beta will help you find out quickly.

Try me now

Search Within:

Page 5/5

Sort By:Featured Items

View:36

LinksTek 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE RS232 Card, PCIE Serial DB9 Port Card (PCIE-SE2)

LinksTek 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE RS232 Card, PCIE Serial DB9 Port Card (PCIE-SE2)

Model #: 621924803944

$58^.99 –
$5.99 Shipping

Compare

UTEK UT-5204 4port RS485 Guide Rail Type Intelligent Hub(4-Port RS-485 Hub, Rail-Mounted,Binding Post, PhotoElectric Isolation)

UTEK UT-5204 4port RS485 Guide Rail Type Intelligent Hub(4-Port RS-485 Hub, Rail-Mounted,Binding Post, PhotoElectric Isolation)

Model #: 988154255333

$161^.99 –
$5.99 Shipping

Compare

AODUKE 8-Port USB 3.0 SD Card Reader, Walnut Wood Design 5Gbps Data, Simultaneous Support to Micro SD/TF3.0 and SD3.0 Card Read and Write (Compatible UHS-I/II Card)-AST43M

AODUKE 8-Port USB 3.0 SD Card Reader, Walnut Wood Design 5Gbps Data, Simultaneous Support to Micro SD/TF3.0 and SD3.0 Card Read and Write (Compatible UHS-I/II Card)-AST43M

Model #: 994255043021

$92^.99 –
$5.00 Shipping

Compare

Onefavor SmartMedia Cards Reader Writer, All-in-1 USB Universal Multi Card Adapter and 3.3V SmartMedia Cards SM 16MB

Onefavor SmartMedia Cards Reader Writer, All-in-1 USB Universal Multi Card Adapter and 3.3V SmartMedia Cards SM 16MB

Limited time offer, ends 05/12

Model #: 379232758257

$85^.98 –
More options from $85.98 - $86.99
Free Shipping

Compare

Pocket 4 Mini Laptop 8.8" 2.5K 144Hz Touchscreen with AMD Ryzen AI 9 HX 370(32GB LPDDR5X | 2TB SSD) Wi-Fi 6E, Bluetooth 5.3, Modular AI Handheld PC, for Gamers/Developers/Professionals/Travelers

Pocket 4 Mini Laptop 8.8" 2.5K 144Hz Touchscreen with AMD Ryzen AI 9 HX 370(32GB LPDDR5X | 2TB SSD) Wi-Fi 6E, Bluetooth 5.3, Modular AI Handheld PC, for Gamers/Developers/Professionals/Travelers

Screen Size: 8.8"
Model #: Pocket 4 HX 370

$2,019^.00 –

Compare

DTECH USB to Serial Adapter RS485 RS422 R232 (3 in 1 Interface) Supports DC 5V with Breakout Board LED Lights for Multi-Kind Control Devices Windows 11 10 8 7 XP Mac (5ft)

DTECH USB to Serial Adapter RS485 RS422 R232 (3 in 1 Interface) Supports DC 5V with Breakout Board LED Lights for Multi-Kind Control Devices Windows 11 10 8 7 XP Mac (5ft)

Model #: 508922680367

$73^.99 –
$5.99 Shipping

Compare

Rewoalzx 10Pcs DX4 DX5 Big Damper with Big Filter, for Roland, Mimaki, Mutho Big Ink Damper with Big Mesh Filter for Roland XC-540, VP-300-6085393800

Rewoalzx 10Pcs DX4 DX5 Big Damper with Big Filter, for Roland, Mimaki, Mutho Big Ink Damper with Big Mesh Filter for Roland XC-540, VP-300-6085393800

Model #: 439480252614

$63^.99 –
$5.99 Shipping

Compare

CCTV Joystick Keyboard Controller LCD Display 4D Joystick RS485 Controller for CCTV AHD CVBS Analog PTZ Speed Dome Camera Control

CCTV Joystick Keyboard Controller LCD Display 4D Joystick RS485 Controller for CCTV AHD CVBS Analog PTZ Speed Dome Camera Control

Model #: 508922641757

$126^.99 –
$5.99 Shipping

Compare

Eonvic GEV162 GPS Data Transfer Cable 733282 for Lei-ca TS30 TM30 TS50 Total Station RX1250 ATX1200 Controller Port to PC RS232 DB9

Eonvic GEV162 GPS Data Transfer Cable 733282 for Lei-ca TS30 TM30 TS50 Total Station RX1250 ATX1200 Controller Port to PC RS232 DB9

Model #: 508922630799

$117^.99 –
$5.99 Shipping

Compare

SmartMedia Card Reader Writer All-in-1 USB Universal Multi Card Adapter Slim Hub Read Smart Media, xD, SD, SDHC, SDXC, UHS-I, MMC, MS Pro Duo, CF, MD, Camera Flash Memory Cards For Windows, Mac, Linux

SmartMedia Card Reader Writer All-in-1 USB Universal Multi Card Adapter Slim Hub Read Smart Media, xD, SD, SDHC, SDXC, UHS-I, MMC, MS Pro Duo, CF, MD, Camera Flash Memory Cards For Windows, Mac, Linux

Model #: 508922622169

$52^.99 –
$5.99 Shipping

Compare

PCI express 4 ports Serial RS422 RS485 card PCI-e to Multi RS-422 RS-485 adapter PCIe Industrial I/O Card + low profile bracket

Limited time offer, ends 05/14

Model #: Aomoproing-ZX15

$104^.99 –
Free Shipping

Compare

Eboxer 2 Port PCI Express RS232 Serial Adapter, PCIe to RS232 Serial Port Host Controller Expansion Card for Laptop PC, 2.5Gb/s Full Duplex Channel, Plug and Play

Eboxer 2 Port PCI Express RS232 Serial Adapter, PCIe to RS232 Serial Port Host Controller Expansion Card for Laptop PC, 2.5Gb/s Full Duplex Channel, Plug and Play

Model #: 923733341649

$36^.99 –
$5.99 Shipping

Compare

4K@30 Hz HDMI KVM Fiber Extender with Loop-Out Over Single-Mode Fiber up to 20 km Plug-&-Play, 4USB 2.0, Bidirectional IR & RS-232

4K@30 Hz HDMI KVM Fiber Extender with Loop-Out Over Single-Mode Fiber up to 20 km Plug-&-Play, 4USB 2.0, Bidirectional IR & RS-232

Model #: 621924791760

$365^.99 –
$5.99 Shipping

Compare

OREI USB 3.0 4x4 Matrix Peripheral Sharing Switch, Share 4 USB Devices with 4 Different Computer Hosts PC, Printer, Scanner, Mouse, Keyboard, Mulitiple Displays Monitor - IP/Remote Control

OREI USB 3.0 4x4 Matrix Peripheral Sharing Switch, Share 4 USB Devices with 4 Different Computer Hosts PC, Printer, Scanner, Mouse, Keyboard, Mulitiple Displays Monitor - IP/Remote Control

Model #: 621924839752

$287^.99 –
$5.99 Shipping

Compare

TRENDnet 4-Port Fast Ethernet Industrial Modbus Gateway, 4 x Serial DB-9 Ports, 2 x Fast Ethernet Ports, Up to 100m (328 ft), IP30 Rated Housing, Extreme Temperature Protection, Black, TI-M42

TRENDnet 4-Port Fast Ethernet Industrial Modbus Gateway, 4 x Serial DB-9 Ports, 2 x Fast Ethernet Ports, Up to 100m (328 ft), IP30 Rated Housing, Extreme Temperature Protection, Black, TI-M42

Model #: 508922688479

$619^.99 –
$5.99 Shipping

Compare

Lantronix Device Networking Ed41000p2-01 4port Terminal/device Server Intl Ps Ed41000p2-01

Lantronix Device Networking Ed41000p2-01 4port Terminal/device Server Intl Ps Ed41000p2-01

Model #: 988154235540

$783^.99 –
$5.99 Shipping

Compare

MERCURY SECURITY MR52-S3 Dual Reader Interface Module Board - Series 3

MERCURY SECURITY MR52-S3 Dual Reader Interface Module Board - Series 3

Model #: 621924798356

$806^.99 –
$5.99 Shipping

Compare

AV Access 8K KVM HDMI Extender Over CAT6/7, 328ft HDBaseT 2.0 Extender with 4 USB 2.0 Ports, 8K@60Hz 4:2:0, 4K@120Hz, EDID, HDCP 2.3, Audio Extraction, Zero-Latency, RS232, One-Way PoC, Plug & Play

AV Access 8K KVM HDMI Extender Over CAT6/7, 328ft HDBaseT 2.0 Extender with 4 USB 2.0 Ports, 8K@60Hz 4:2:0, 4K@120Hz, EDID, HDCP 2.3, Audio Extraction, Zero-Latency, RS232, One-Way PoC, Plug & Play

Model #: 994255049207

$501^.99 –
$5.00 Shipping

Compare

Apple iPad Air 4 (4th Gen) 2020 - 10.9" - 64GB - Wi-Fi + Cellular - Rose Gold (Grade B-)

Refurbished Apple iPad Air 4 (4th Gen) 2020 - 10.9" - 64GB - Wi-Fi + Cellular - Rose Gold (Grade B-)

OUT OF STOCK

GPU/VPU: Apple 4-core
Brand: Apple
Series: iPad Air
Release Year: 2020
Model #: A.PA4.U.64.RS.6

$233^.99 –

Compare

Page 5/5

Did You Find It?

Deals Just For You

Sign up to receive exclusive offers in your inbox.

clear text

View Latest Email Deals

Download Our APP

Enter your phone number and we'll send you a download link.

+1

OR

Shop on Newegg APP

Scan the QR code to download App

Scan this code with your phone's camera.

Customer Service

Help Center
Track an Order
Return an Item
Return Policy
Privacy & Security
Feedback

My Account

Login/Register
Browsing History
Order History
Returns History
Address Book
Wish Lists
My Build Lists
My Build Showcase
Email Notifications
Subscriptions Orders
Auto Notifications

Company Information

About Newegg
Investor Relations
Newegg Student Internship Program
Gamer Zone
Awards/Rankings
Hours and Locations
Press Inquiries
Newegg Careers
Newsroom
Newegg Insider
Calif. Transparency
in Supply Chains Act

Tools & Resources

Become a supplier
Sell on Newegg.com
For Your Business
Newegg Partner Services
Become an Affiliate
Newegg Creators
Site Map
Shop by Brand
Rebates
Mobile Apps
Student Discount
Newegg Store Credit Card
Build Showcases
Progressive Leasing
Trade In

Shop Our Brands

Newegg Business
Newegg Global
ABS
Rosewill

© 2000-2026 Newegg Inc. All rights reserved.

Terms & Conditions Privacy PolicyCookie Settings

Reddit
Facebook
X
Instagram
LinkedIn
Pinterest
YouTube
Twitch
Discord
Tiktok

Compare Items

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Messages