What is the PC rating for the following memory module ults1660 1042mb 266mhz?

The memory module labeled "ults1660 1042MB 266MHz" has a PC rating of PC2100. This rating corresponds to a memory bandwidth of 2.1 GB/s, which is typical for DDR266 (DDR SDRAM running at 266 MHz). The "1042MB" suggests its capacity, indicating that it is a DDR memory module designed for use in systems that support this speed and capacity.