Product Details Module Name: PC3-8500R Speed: 1066 MHz Data Integrity Check: ECC Kit Storage Capacity: 16GB (4 x 4GB) Condition: Fully Tested, Refurbished Warranty: 1 Year Warranty Compatible with Dell R410 R610 R510 R320 R520 R620 R720 R415 R515 R715 R810 R910 T410 T420 T610 T620 M420 M620 M820 C6145 C6220 C6220 II R920 R820 M910 T7600 T7610 R7610 M520 M610 M610X T7500 R5500 T3610 T5600 T5610 T320 T3600