Which drives are you looking to buy, or do you already have one?
I've got a total of two 68pin<->50 pin adapters for the few SCSI II drives I have that are 68pin. Most of my drives are SCA, 80 pin connector, Ultra SCSI III 160 or ZUltra 320 drives from servers. These are extremely common, having been built with an AIO connector (power, address & signals) that's hot-swappable in server arrays. Many more of these drive have probably been built over the years than vanilla 68pin SCSI II drives. As I understand it, oodles of them are hitting the market as servers are being upgraded/replaced with units employing serial, rather than parallel HDD interfaces . . .
. . . so more adapters made to meet the demand for adapting more available drives translates into inexpensive Chinese electronic jewelry.
I've got a total of two 68pin<->50 pin adapters for the few SCSI II drives I have that are 68pin. Most of my drives are SCA, 80 pin connector, Ultra SCSI III 160 or ZUltra 320 drives from servers. These are extremely common, having been built with an AIO connector (power, address & signals) that's hot-swappable in server arrays. Many more of these drive have probably been built over the years than vanilla 68pin SCSI II drives. As I understand it, oodles of them are hitting the market as servers are being upgraded/replaced with units employing serial, rather than parallel HDD interfaces . . .
. . . so more adapters made to meet the demand for adapting more available drives translates into inexpensive Chinese electronic jewelry.