Hard Drive, SSD, and Memory Upgrade for Dell Dimension E521n
Dell Dimension E521n Desktop hard drive, solid state drive and memory specification, configuration, and compatible hard drive and memory upgrade options.
| Minimum Memory | 2GB |
| Maximum Memory | 4GB |
| Memory Connectors | 4 (Four Memory Socket) |
| Compatible Memory | DDR2 667MHz |
| Compatible SSD | 2.5'' SATA III SSD |
| Compatible Hard Drive | 3.5'' SATA HDD |
All Memory Modules are of Major Brands - Hynix, Adata, Crucial, Kingston, Samsung, Super Talent or Nanya

512MB PC2-6400 800MHz DDR2 240-Pin Non-ECC CL6 DIMM 
1GB PC2-6400 800MHz DDR2 240-Pin Non-ECC CL6 DIMM 

Hard Drive Upgrade Options for Dell Dimension E521n:
160GB 7200RPM SATA 3Gb/s 8MB Cache 3.5 Inch Desktop Hard Drive HDD 
250GB 7200RPM SATA 6Gb/s 8MB Cache 3.5 Inch Desktop Hard Drive HDD 
320GB 7200RPM SATA 6Gb/s 16MB Cache 3.5 Inch Desktop Hard Drive HDD 
500GB 7200RPM SATA 6Gb/s 16MB Cache 3.5 Inch Desktop Hard Drive HDD 
1TB 7200RPM SATA 6Gb/s 64MB Cache 3.5 Inch Desktop Hard Drive HDD 
2TB 7200RPM SATA 6Gb/s 256MB Cache 3.5 Inch Desktop Hard Drive HDD 

Solid State Drive Upgrade Options for Dell Dimension E521n:
128GB SATA III 6Gb/s 3D NAND Flash 2.5 Inch Solid State Drive SSD 
256GB SATA III 6Gb/s 3D NAND Flash 2.5 Inch Solid State Drive SSD 
512GB SATA III 6Gb/s 3D NAND Flash 2.5 Inch Solid State Drive SSD 
1TB SATA III 6Gb/s 3D NAND Flash 2.5 Inch Solid State Drive SSD 
2TB SATA III 6Gb/s 3D NAND Flash 2.5 Inch Solid State Drive SSD 



















