Neo Geo CD
The Neo Geo CD, released in 1994, was initially an upgrade from the original AES. This console uses CDs instead of ROM cartridges like the AES. The unit's (approximately) 1X CD-ROM drive was slow, making loading times very long with the system loading up to 56 Mbits of data between loads. Neo Geo CD game prices were low at US$50, in contrast to Neo Geo AES game cartridges which cost as much as US$300. The system could also play Audio CDs. All three versions of the system have no region-lock.