You will receive a genuine Micro-Acoustics R309.
The above needle is a workable replacement for the following,(listed from lowest to highest quality):
Cartridges: Needles:
309 R309 Elliptical <----this product
382 R382 Elliptical
3002 R3002 Micro Point II
630 R630 Micro Point II (MA630) pictured above
830CSA R830 Cutting Stylus Analog