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YACSEJAO USB to Serial (9 Pin) Adapter DB9 Male RS-232 to USB 2.0 Converter Cable for Windows 10 8 7 Vista XP Mac OS, 1.2M
YACSEJAO

YACSEJAO USB to Serial (9 Pin) Adapter DB9 Male RS-232 to USB 2.0 Converter Cable

Bottom line: The YACSEJAO USB to Serial is a specs-and-price decision rather than a crowd-consensus one in the cables & connectors category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Backed by YACSEJAO's warranty and support channels

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

SpecificConnector 1: USB type A maleConnector 2: DB9 RS-232 Serial MaleRS232 Cable Length: 1.2M/3.9 FtChip: CH340 9 pin RS232 to USB adapter supports Windows 10, 8, 7, XP, Vista, Mac OS or higher.USB 2.0 standard, backward compatibleImportant Note:1. The Serial COM Port is male Interface, which fits for the Serial (COM) Device with 9-Pin female Port. Please make sure the interface of your device is 9-Pin DB9 female before making a purchase.2. Serial to USB 2 converter pingout 1-9: DCD, TXD, RXD, DTR, GND, DSR, RTS, CTS, RI (Pins 1-5 first row from left to right, pins 6-9 second row from left…

SpecPicks Verdict

SpecPicks scored YACSEJAO USB to Serial (9 Pin) Adapter DB9 Male RS-232 to USB 2.0… using a rating × review-volume × price-fit model applied to published specs and reviews across the cables & connectors category. YACSEJAO's cables & connectors lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cables & connectors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • The USB to RS232 DB9 serial male cable adds a COM port to your computer via the USB interface, so you can make the most of your existing equipment or free up your existing computer serial connector.
  • The USB to serial adapter is designed for connecting serial devices such as DB9 equipped cash registers, PLAMs, CNC machines, temperature control devices, routers, ISDN terminal adapters, digital cameras, scanners, label writers, modems, cameras, card readers, PDAs and other serial device connections. Note: It is not compatible with cutting plotters and microcontrollers.
  • The DB9 serial cable to USB adapter uses the CH340 premium processor chip and supports 32 and 64 bit Windows 10/8/7/Vista/XP/Mac OS and above. Drive-free requires automatic update with network access. Plug and Play.
  • Tinned copper conductors and triple shielding ensure optimum data transfer rates. USB bus powered, no external power adapter required, supports your widest range of operating system compatibility and reliable data communication.
  • The USB to RS232 adapter interface is a 9-pin RS232 (9-wire pins 1-9: DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS, RI) male connector, please ensure that your serial device has a 9-pin female port before purchasing.

Full Specifications

BrandYACSEJAO
ColorBlack
FinishCopper
Unit Count1 Count
Finish TypeCopper
ConnectivityUSB
Model NumberNXA020-FBA_01
CompatibilityMac
Built-In Media1 * USB to Serial (9 Pin) Adapter
Connector TypeDB9, USB Type A
Mfr Part NumberNXA020-FBA_01
Number of Items1
Number of Ports1
Power Plug TypeNo Plug
Compatible DevicesPersonal Computer
Full listing titleYACSEJAO USB to Serial (9 Pin) Adapter DB9 Male RS-232 to USB 2.0 Converter Cable for Windows 10 8 7 Vista XP Mac OS, 1.2M

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YACSEJAO USB to Serial (9 Pin) Adapter DB9 Male RS-232 to USB 2.0 Converter Cable for Windows 10 8 7 Vista XP Mac OS, 1.2M is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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