This product is either discontinued or we cannot get that from suppliers.
Startech LSATARND24 24in Latching Round Sata Cable, Connector A/B 1 - SATA (7 pin, Data) Latching Receptacle, Cable Length 24 in [609.6 mm], Black, Wire Gauge 30 AWG.
The LSATARND24 2-foot/24-inch latching round SATA cable is a high quality SATA 6Gbps cable that features a rounded design to help improve airflow inside a computer or server case by providing less resistance as air passes around the cable.