Is it this one?

https://www.amazon.com/Shimano-Universal-Standard-Brake-Cable/dp/B0050LUBZ8/ref=mp_s_a_1_5?crid=2M7L6EO8JMGOQ&keywords=shimano+mtb+housing+and+wire&qid=1688044197&sprefix=shimano+mtb+housing+and+wir%2Caps%2C251&sr=8-5

I recently added a front suspension and needed a longer cable. Some other post recommended this which worked fine: https://www.amazon.com/gp/aw/d/B0050LUBZ8?psc=1&ref=ppx_pop_mob_b_asin_title

the left one is this from shimano

https://www.amazon.com/dp/B0050LUBZ8