will this connector work for my royal cash register? I have bought scanners for the register, but wonder if the USB scanners may last longer.

This is a serial to USB converter, not vice-versa. If your scanner has a USB connection already, then this item is of no use to you. By the way, less and less laptops (and I would assume desktops) come equipped with a COM port (that is why I needed this converter), so opting your USB port for a COM port sounds more of an own goal. Perhaps I misunderstood your question.

Prolific chips often exhibits erratic behavior with some serial devices. The reliable chip is the FTDI chip.

Will this work to connect a computer to a CISCO Switch via the console cable?

Yesssss its a great usb to serial cable

I assume this will plug and play with WIN10 64x ...? thanks!

It is just a cable so I would assume so. My husband uses it with his Windows 10 laptop to connect to his telescope.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9

Product ID: 701399

Details

Color
White
Compatible Devices
Gateways PLC
Connector Type
USB Type A
Item dimensions L x W x H
2.56 x 1.38 x
Specific Uses For Product
Serial Devices

⚡6Mbps max data rate

🔌USB powered, no adapter needed

🖥️Plug & Play, Win & Mac compatible

HK$188

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Description

⚡ Stay connected to the classics with modern speed!

COMPACT NDAA COMPLIANT - Travel-ready 25-inch cable in crisp white, meeting strict security standards.
POWER FROM YOUR USB PORT - Forget bulky adapters—powered directly via USB for sleek, clutter-free desks.
BLAZING FAST 6 MBPS TRANSFER - Seamlessly connect legacy serial devices with ultra-reliable speed.
TRUE PLUG PLAY SIMPLICITY - Instant setup on Windows & Mac—no drivers, no hassle, just work.
UNIVERSAL SERIAL COMPATIBILITY - Supports full RS-232 modem control signals for professional-grade connectivity.

The TRENDnet TU-S9 USB to Serial 9-Pin Converter Cable offers a high-speed 6Mbps RS-232 connection, powered entirely via USB with no external adapter needed. Compatible with Windows and Mac systems, it supports full modem control signals and features easy plug-and-play installation. Its compact 25-inch length and NDAA compliance make it a secure, professional solution for connecting legacy serial devices effortlessly.

Specifications

ASIN	B0007T27H8
Best Sellers Rank	#17 in Serial Cables
Brand	TRENDnet
Built-In Media	CD-ROM (Driver and User’s Guide), Quick Installation Guide, TU-S9
Color	White
Compatible Devices	Gateways, Laptop, Modems, PLC controllers, POS systems, Printer
Connector Type	USB Type A
Customer Reviews	4.6 out of 5 stars 3,200 Reviews
External Testing Certification	CE, FCC
Finish	White
Global Trade Identification Number	00710931303209
Input Voltage	5 volts_of_direct_current
Item Dimensions	2.56 x 1.38 x 0.39 inches
Item Weight	40 g
Item dimensions L x W x H	2.56 x 1.38 x 0.39 inches
Manufacturer	TRENDnet
Mfr Part Number	TU-S9
Model Number	TU-S9
Nominal Power	2.5 watts
Number of Items	1
Number of Ports	3
Package Quantity	1
Power Plug Type	No Plug
Specific Uses For Product	Serial Devices
UPC	710931303209
Unit Count	1 Count
Warranty Description	2 year

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

HK$188

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews