Lenovo 46C7448-RFB is a 4 GB memory module for adding or replacing system memory in compatible computers. It is listed as used or refurbished, so its condition is distinct from a new module.
The module uses DDR3 memory in a 240-pin DIMM format and supports ECC error correction. Its listed clock speed is 1066 MHz, with a voltage of 1.5 V and CAS latency 7. These details describe the module for selecting it for a system that supports the same memory type and form factor.