8GB 1Rx4 PC3L-12800R

Dell M393B1G70BH0-YK0-RFB is an 8 GB memory module for upgrading or replacing memory in a compatible computer. Its 1Rx4 organization and PC3L-12800R specification identify this particular module.

The listing also identifies it as DDR3-1600MHz and gives 0M393B1G70BH0-YK0-RFB as a replacement reference. These details help distinguish it when matching a memory part by model number and specification.