Black Box
DB9 Serial Null-Modem Cable
Best choice for connecting legacy serial devices for direct data transfer.
This Black Box DB9 Serial Null-Modem Cable is designed for reliable data transfer between AT computers. It features a 10-foot length, making it suitable for various setups. The cable has a beige PVC jacket and metal hoods for EMI/RFI protection, ensuring signal integrity. It complies with RS-232 standards by crossing pins 2 and 3 for proper data transmission. This cable is built for durability and ease of use, offering a cost-effective solution for serial connections. It is backed by a lifetime limited warranty.
$35.97
Owner Satisfaction
4.5
/ 5
Category Rank
584
/ 2608
#584 in Storage & Data Transfer Cables
Price vs Category Average
-34%
Below average
Product Type
Data Transfer Cable
/ Data Transfer Cable
Who it's for
- IT technicians needing direct device-to-device communication
- Engineers maintaining legacy industrial hardware and specialized instruments
- System administrators performing quick hardware diagnostics and configuration
Who should skip it
- Users working exclusively with modern USB or wireless technology
- Professionals lacking dedicated serial ports or terminal emulation software
- Users requiring high-speed data transfer for intensive tasks
Performance breakdown
Signal Integrity
Metal hoods provide robust protection against signal-degrading EMI and RFI interference.
Build Durability
Copper conductors and a sturdy PVC jacket ensure long-term connection reliability.
Compatibility
Standardized pin-crossing makes this a plug-and-play solution for legacy serial devices.
Reach
Ten-foot length offers ample flexibility for most desktop and workstation configurations.
Ease of Installation
Straightforward design allows for quick, tool-free setup between serial hardware.
Warranty Support
Lifetime limited coverage provides total peace of mind for legacy infrastructure.
Key Specs
Product Type
Data Transfer Cable
Cable Length
10 ft
Cable Type
Serial
Connector on First End Details
DB-9 RS-232 Serial - Male
Connector on Second End Details
DB-9 RS-232 Serial - Female
Shielding
Yes
Features
EMI/RF Protection
Product Color
Beige
Features
- Ideal for AT-to-AT file transfers.
- Connects two serial devices, enabling data transmission without a modem by crossing transmit and receive signals.
- Gray PVC jacket with metal (EMI/RFI) hoods.
- Has 115-ohm nominal impedance at 1 MHz or above.
- Crosses Pins 2 and 3 for RS-232 standards compliance.
What customers say
Customers consistently praise the Black Box DB9 Serial Null Modem Cable for its exceptional reliability and robust quality. Users frequently highlight how the cable simply performs its intended function flawlessly, establishing stable connections without issue. Its durable construction ensures longevity, making it a dependable choice for critical applications. The consistent performance and solid build quality are recurring themes, underscoring its reputation as a trustworthy component in various setups. This cable is valued for its consistent, trouble free operation.
Know before you buy
A null-modem cable is designed to connect two DTE (Data Terminal Equipment) devices, such as two computers, directly to each other. By crossing the transmit and receive pins, it allows the devices to communicate without the need for a modem.
Yes, this cable is fully compliant with RS-232 standards. It achieves this by crossing pins 2 and 3, which ensures proper data transmission between compatible serial devices.
The cable is equipped with metal hoods that provide essential EMI/RFI shielding. This construction helps maintain signal integrity by protecting your data transmission from external electromagnetic and radio frequency interference.
This specific cable is configured as a null-modem cable, which is intended for computer-to-computer communication. If your peripheral device requires a straight-through serial cable, this null-modem version will not work for that application.
The cable features a durable beige PVC jacket and robust metal hoods. It is built for reliable, long-term use and is backed by a lifetime limited warranty.
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