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TRENDnet USB to Serial 9-Pin Converter Cable
17th Jul 2026, 04:50 AM

TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White

Price may vary by location, shipping cost, and availability.
63% Off
$12.99
$34.99

Highest: $39.99
Average: $9.67
Lowest: $0.01

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Based our analysis and observation, there is 66.13% chance that the price of TRENDnet USB to Serial 9-Pin Converter Cable... will increase. Price of product might fluctuate between 30% and 34% of current price.*

Price History Graph

Offer Price Prices
Lowest: -
Average: -
Highest: -

Price History Information

You can check the price history of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White here. This product's current Price in USA is $12.99. The average and highest prices are $9.67 and $39.99 respectively.

Lowest Ever Price $0.01
18th Mar 2017
Average Price $9.67
Based on 5597 days price tracking
Highest Price $39.99
10th Aug 2021

Current Price in USA

Price $12.99
MRP $34.99
Savings $22.00
Discount 62.87%

Recent Price Drops on TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White

Price Drop 8th May 2026
$12.99 $10.99
15.4% drop
Price Drop 11th Nov 2025
$12.99 $10.99
15.4% drop
Price Drop 8th Sep 2025
$19.61 $12.99
33.76% drop
Price Drop 6th Sep 2025
$19.61 $11.99
38.86% drop
Price Drop 9th Aug 2025
$12.99 $10.99
15.4% drop
Price Drop 22nd Jul 2025
$14.99 $12.99
13.34% drop
Price Drop 14th Jul 2025
$16.99 $14.99
11.77% drop
Price Drop 10th Jun 2025
$12.97 $8.80
32.15% drop
Price Drop 8th May 2025
$8.80 $8.00
9.09% drop
Price Drop 28th Feb 2025
$11.99 $8.80
26.61% drop
Price Drop 18th Jan 2025
$9.99 $8.80
11.91% drop
Price Drop 3rd Jan 2025
$11.99 $9.99
16.68% drop
Price Drop 11th Dec 2024
$11.99 $11.19
6.67% drop
Price Drop 6th Nov 2024
$11.99 $6.95
42.04% drop
Price Drop 11th Oct 2024
$11.99 $9.99
16.68% drop
Price Drop 13th Sep 2024
$11.99 $9.99
16.68% drop
Price Drop 16th Aug 2024
$11.99 $9.99
16.68% drop
Price Drop 24th Jun 2024
$11.99 $9.74
18.77% drop
Price Drop 9th Jun 2024
$10.49 $9.74
7.15% drop
Price Drop 21st May 2024
$9.73 $8.73
10.28% drop
Price Drop 10th May 2024
$9.74 $8.99
7.7% drop
Price Drop 17th Apr 2024
$10.99 $9.74
11.37% drop
Price Drop 30th Mar 2024
$11.98 $9.99
16.61% drop
Price Drop 16th Mar 2024
$11.99 $10.99
8.34% drop
Price Drop 8th Mar 2024
$10.99 $9.59
12.74% drop
Price Drop 24th Aug 2023
$10.99 $9.99
9.1% drop
Price Drop 26th Jul 2023
$10.99 $10.19
7.28% drop
Price Drop 22nd Jul 2023
$10.99 $6.50
40.86% drop
Price Drop 30th Jun 2023
$11.99 $10.99
8.34% drop
Price Drop 14th Jun 2023
$11.95 $10.99
8.03% drop
Price Drop 2nd May 2023
$11.95 $10.79
9.71% drop
Price Drop 5th Jan 2023
$12.99 $11.99
7.7% drop
Price Drop 4th Jan 2023
$12.99 $11.99
7.7% drop
Price Drop 22nd Nov 2022
$12.99 $11.04
15.01% drop
Price Drop 5th Oct 2022
$8.99 $8.09
10.01% drop
Price Drop 7th Jun 2022
$12.99 $8.99
30.79% drop
Price Drop 28th Mar 2022
$14.99 $12.99
13.34% drop
Price Drop 20th Feb 2022
$14.99 $12.99
13.34% drop
Price Drop 2nd Feb 2022
$14.99 $12.99
13.34% drop
Price Drop 29th Dec 2021
$13.94 $12.99
6.81% drop
Price Drop 3rd Dec 2021
$14.99 $13.94
7% drop
Price Drop 10th Nov 2021
$13.94 $12.99
6.81% drop
Price Drop 31st Oct 2021
$14.99 $13.94
7% drop
Price Drop 20th Oct 2021
$39.99 $12.99
67.52% drop
Price Drop 7th Oct 2021
$24.36 $14.99
38.46% drop
Price Drop 19th Sep 2021
$14.99 $13.50
9.94% drop
Price Drop 14th Sep 2021
$16.99 $14.99
11.77% drop
Price Drop 9th Sep 2021
$18.30 $14.99
18.09% drop
Price Drop 24th Aug 2021
$14.99 $13.94
7% drop
Price Drop 17th Aug 2021
$14.99 $11.83
21.08% drop
Price Drop 12th Aug 2021
$14.99 $11.96
20.21% drop
Price Drop 9th Aug 2021
$39.99 $14.99
62.52% drop
Price Drop 14th Jul 2021
$30.83 $11.86
61.53% drop
Price Drop 6th Jul 2021
$22.99 $19.95
13.22% drop
Price Drop 18th Jun 2021
$13.47 $11.17
17.07% drop
Price Drop 17th Jun 2021
$32.64 $13.47
58.73% drop
Price Drop 13th Jun 2021
$32.50 $10.82
66.71% drop
Price Drop 18th May 2021
$29.57 $9.99
66.22% drop
Price Drop 12th May 2021
$29.57 $9.99
66.22% drop
Price Drop 9th May 2021
$27.13 $16.06
40.8% drop
Price Drop 6th May 2021
$27.14 $9.99
63.19% drop
Price Drop 5th May 2021
$27.30 $19.65
28.02% drop
Price Drop 14th Jan 2021
$9.99 $4.49
55.06% drop
Price Drop 26th Nov 2020
$9.89 $8.99
9.1% drop
Price Drop 15th Sep 2020
$9.00 $7.99
11.22% drop
Price Drop 28th Jul 2020
$9.49 $9.00
5.16% drop
Price Drop 27th Jul 2020
$9.99 $9.49
5.01% drop
Price Drop 7th Jul 2020
$9.99 $9.49
5.01% drop
Price Drop 2nd May 2020
$11.86 $10.00
15.68% drop
Price Drop 27th Mar 2020
$6.99 $6.30
9.87% drop
Price Drop 13th Oct 2019
$7.99 $6.99
12.52% drop
Price Drop 19th Jun 2019
$5.99 $4.99
16.69% drop
Price Drop 3rd Jun 2019
$5.99 $5.32
11.19% drop
Price Drop 8th May 2019
$5.99 $4.99
16.69% drop
Price Drop 28th Apr 2019
$7.03 $5.99
14.79% drop
Price Drop 7th Feb 2019
$7.13 $2.96
58.49% drop
Price Drop 26th Oct 2018
$7.13 $2.99
58.06% drop
Price Drop 18th Jul 2018
$8.50 $2.99
64.82% drop
Price Drop 11th Apr 2018
$8.99 $6.00
33.26% drop
Price Drop 10th Mar 2018
$9.99 $8.99
10.01% drop
Price Drop 2nd Dec 2017
$5.99 $4.99
16.69% drop
Price Drop 24th Nov 2017
$4.16 $0.04
99.04% drop
Price Drop 23rd Nov 2017
$5.99 $4.16
30.55% drop
Price Drop 22nd Nov 2017
$7.99 $4.16
47.93% drop
Price Drop 14th Nov 2017
$4.60 $0.04
99.13% drop
Price Drop 9th Nov 2017
$7.99 $4.23
47.06% drop
Price Drop 6th Nov 2017
$8.49 $7.99
5.89% drop
Price Drop 5th Nov 2017
$8.99 $4.20
53.28% drop
Price Drop 21st Oct 2017
$4.96 $4.60
7.26% drop
Price Drop 1st Oct 2017
$4.96 $4.40
11.29% drop
Price Drop 2nd Sep 2017
$4.96 $1.51
69.56% drop
Price Drop 13th Aug 2017
$5.00 $4.50
10% drop
Price Drop 9th Aug 2017
$4.50 $2.50
44.44% drop
Price Drop 6th Aug 2017
$5.00 $3.00
40% drop
Price Drop 23rd Jul 2017
$5.00 $4.29
14.2% drop
Price Drop 15th Jul 2017
$2.00 $1.58
21% drop
Price Drop 14th Jul 2017
$5.00 $2.52
49.6% drop
Price Drop 14th Jul 2017
$2.52 $2.00
20.63% drop
Price Drop 8th Jul 2017
$5.00 $3.59
28.2% drop
Price Drop 15th Jun 2017
$1.35 $0.01
99.26% drop
Price Drop 3rd Jun 2017
$1.98 $1.35
31.82% drop
Price Drop 18th May 2017
$7.99 $1.98
75.22% drop
Price Drop 5th May 2017
$2.16 $1.98
8.33% drop
Price Drop 2nd May 2017
$7.99 $2.16
72.97% drop
Price Drop 14th Apr 2017
$2.16 $0.01
99.54% drop
Price Drop 8th Apr 2017
$9.99 $2.16
78.38% drop
Price Drop 5th Apr 2017
$6.21 $4.50
27.54% drop
Price Drop 17th Mar 2017
$2.16 $0.01
99.54% drop
Price Drop 16th Feb 2017
$2.66 $2.16
18.8% drop
Price Drop 3rd Feb 2017
$3.28 $2.66
18.9% drop
Price Drop 22nd Jan 2017
$9.99 $3.28
67.17% drop
Price Drop 14th Jan 2017
$10.00 $1.99
80.1% drop
Price Drop 2nd Jan 2017
$5.00 $1.99
60.2% drop
Price Drop 27th Dec 2016
$8.88 $5.00
43.69% drop
Price Drop 12th Dec 2016
$8.88 $6.49
26.91% drop
Price Drop 23rd Oct 2016
$5.00 $1.99
60.2% drop
Price Drop 22nd Oct 2016
$5.71 $5.00
12.43% drop
Price Drop 18th Oct 2016
$6.00 $1.99
66.83% drop
Price Drop 6th Oct 2016
$8.66 $2.99
65.47% drop
Price Drop 10th Sep 2016
$9.93 $2.99
69.89% drop
Price Drop 31st Aug 2016
$7.00 $2.99
57.29% drop
Price Drop 24th Aug 2016
$2.99 $2.39
20.07% drop
Price Drop 29th Jul 2016
$1.58 $1.39
12.03% drop
Price Drop 26th Jun 2016
$4.00 $1.58
60.5% drop
Price Drop 13th Jun 2016
$7.00 $1.58
77.43% drop
Price Drop 19th May 2016
$8.50 $1.58
81.41% drop
Price Drop 3rd May 2016
$9.83 $1.58
83.93% drop
Price Drop 30th Apr 2016
$9.83 $1.58
83.93% drop
Price Drop 18th Apr 2016
$9.83 $8.00
18.62% drop
Price Drop 26th Mar 2016
$9.92 $8.93
9.98% drop
Price Drop 17th Mar 2016
$9.94 $7.24
27.16% drop
Price Drop 12th Mar 2016
$9.94 $4.95
50.2% drop
Price Drop 29th Feb 2016
$9.94 $4.95
50.2% drop
Price Drop 25th Feb 2016
$9.99 $8.00
19.92% drop
Price Drop 16th Feb 2016
$9.94 $4.95
50.2% drop
Price Drop 25th Jan 2016
$9.65 $6.99
27.56% drop
Price Drop 16th Jan 2016
$9.65 $4.96
48.6% drop
Price Drop 5th Jan 2016
$9.95 $4.13
58.49% drop
Price Drop 15th Dec 2015
$9.95 $8.99
9.65% drop
Price Drop 13th Dec 2015
$9.95 $8.99
9.65% drop
Price Drop 12th Nov 2015
$9.62 $9.04
6.03% drop
Price Drop 7th Nov 2015
$9.65 $3.95
59.07% drop
Price Drop 4th Nov 2015
$9.87 $7.80
20.97% drop
Price Drop 29th Oct 2015
$8.00 $4.99
37.63% drop
Price Drop 21st Sep 2015
$7.99 $5.00
37.42% drop
Price Drop 3rd Sep 2015
$8.76 $7.99
8.79% drop
Price Drop 2nd Aug 2015
$8.76 $6.99
20.21% drop
Price Drop 18th Jul 2015
$7.59 $7.09
6.59% drop
Price Drop 7th Jul 2015
$7.69 $7.00
8.97% drop
Price Drop 27th Jun 2015
$7.59 $6.95
8.43% drop
Price Drop 22nd Jun 2015
$7.59 $2.60
65.74% drop
Price Drop 31st May 2015
$8.77 $7.89
10.03% drop
Price Drop 26th May 2015
$8.77 $3.27
62.71% drop
Price Drop 29th Apr 2015
$7.69 $3.19
58.52% drop
Price Drop 8th Apr 2015
$8.77 $7.59
13.45% drop
Price Drop 25th Mar 2015
$7.99 $7.29
8.76% drop
Price Drop 24th Mar 2015
$8.77 $7.99
8.89% drop
Price Drop 23rd Feb 2015
$7.18 $3.49
51.39% drop
Price Drop 19th Nov 2014
$6.79 $3.95
41.83% drop
Price Drop 25th Feb 2014
$9.29 $3.47
62.65% drop
Price Drop 18th Dec 2013
$9.29 $7.29
21.53% drop
Price Drop 11th Dec 2013
$9.29 $8.00
13.89% drop
Price Drop 5th Dec 2013
$9.29 $6.00
35.41% drop
Price Drop 29th Nov 2013
$7.00 $4.25
39.29% drop
Price Drop 25th Nov 2013
$7.50 $6.74
10.13% drop
Price Drop 22nd Nov 2013
$8.00 $7.50
6.25% drop
Price Drop 12th Nov 2013
$8.00 $6.00
25% drop
Price Drop 6th Nov 2013
$9.00 $8.00
11.11% drop
Price Drop 15th Aug 2013
$8.78 $8.19
6.72% drop
Price Drop 12th Aug 2013
$9.00 $8.19
9% drop
Price Drop 12th Jul 2013
$9.29 $4.97
46.5% drop
Price Drop 11th Jul 2013
$9.26 $8.19
11.56% drop
Price Drop 24th Jun 2013
$9.29 $8.19
11.84% drop
Price Drop 11th Jun 2013
$8.62 $4.21
51.16% drop
Price Drop 18th May 2013
$8.19 $4.21
48.6% drop
Price Drop 12th May 2013
$9.29 $2.99
67.81% drop
Price Drop 6th Apr 2013
$8.85 $7.99
9.72% drop
Price Drop 21st Mar 2013
$8.99 $4.87
45.83% drop
Price Drop 10th Mar 2013
$9.06 $8.59
5.19% drop
Price Drop 2nd Dec 2012
$9.50 $5.00
47.37% drop
Price Drop 17th Aug 2012
$8.99 $7.72
14.13% drop
Price Drop 18th Apr 2012
$9.50 $8.79
7.47% drop
Price Drop 12th Jan 2012
$9.05 $7.88
12.93% drop
Price Drop 24th Dec 2011
$9.05 $7.97
11.93% drop
Price Drop 18th Dec 2011
$9.05 $6.97
22.98% drop
Price Drop 16th Dec 2011
$9.05 $6.97
22.98% drop
Price Drop 13th Dec 2011
$9.00 $6.97
22.56% drop
Price Drop 4th Dec 2011
$7.97 $6.97
12.55% drop
Price Drop 3rd Dec 2011
$9.00 $7.97
11.44% drop
Price Drop 8th Oct 2011
$5.77 $4.99
13.52% drop
Price Drop 4th Oct 2011
$6.99 $5.99
14.31% drop
Price Drop 21st Sep 2011
$9.05 $4.99
44.86% drop

Product Information

Details

Product Name TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White
Store Product Code B0007T27H8
Store Name amazon.com
Rating 9.2 / 10
Category Serial Cables
Color White

Features

  • USB: The USB to serial adapter supports USB 1.1 and it is compatible with USB 2.0 and USB 3.0 ports with a 6Mbps Data Rate
  • NDAA COMPLIANT: With our NDAA compliant USB to Serial 9-Pin Converter Cable, you can plan and install networking solutions that Government customers demand today (U.S. and Canada Only)
  • MANUFACTURER PROTECTION: We stand by the quality of our products.The TU-S9 USB to Serial 9-Pin Converter Cable is backed and supported with 2 years of TRENDnet Manufacturer Protection.
  • RELIABLE TECH SUPPORT: Our team of advisors, support and tech experts are English speaking, and available for all your needs during normal business hours. We take pride in being there for our customers.
  • RS-232 SERIAL CONNECTOR: Connect RS-232 serial devices, such as modems or printers, using the widely supported USB standard found in most laptops and desktops today.
  • SUPPORTED OPERATING SYSTEMS: The USB to serial converter adapter is compatible with Windows and Mac operating systems. Windows 10, 8.1, 8, 7. Mac OS 10.11, 10.10, 10.9, 10.8, 10.7, 10.6
  • FLEXIBLE CABLE: Integrated and flexible 540mm (21 in.) USB 2.0 cable accommodates most installation scenarios. Total cable length of 25 inches when including the RS-232 (9pin) and USB Type A.
  • EASY SETUP: Simple installation in seconds of the USB to Serial 9-Pin Converter Cable. Insert the your computer

Images

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Image of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White
Image of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White
Image of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White
Image of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White
Image of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White
Image of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White
Image of TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White

Rating and Reviews

9.2 Based on 3198 reviews

TRENDnet USB to Serial 9-Pin Converter Cable has 9.2 rating out of 10. This average rating is consist of 3198 individual ratings. You can rate this product at product review page.

* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.