That specific module is obsolete afaict and isn’t very powerful (1.5 W, so 63 mA per rail) but industrial DC/DC converters are pretty standardized, so you can probably find other pin-compatible versions both from RECOM and other manufacturers (discussed e.g. here).
I’ve used the tiny ones for bench testing (see e.g. here) and small builds, but haven’t tested them under heavier load.