Genuine MAX232N Texas Instruments Chip, RS232 to TTL chip.

If you've tried using a cheap MAX232CPE chip for your real-world RS232 interfacing project and it got very hot,

this will fix things for you. Those MAX232CPE chips are cheap but only work correctly with USB to serial adapters.

Not real-world vintage serial ports.

UK Postage £1.50. Happy to post worldwide for £9.99.