Micron 4GB DDR2 Memory for MacPro 2006/2007

Micron 4GB DDR2 Memory tested working in Mac Pro 2006/2007(1,1/2,1) This is a used 4GB DDR2 667 MHz ECC Registered CL5 240-Pin DIMM Memory module. These modules were pulled from working servers and are in good working condition. * **Capacity:** 4GB * **Type:** DDR2 SDRAM * **Speed:** DDR2 667MHz (PC2-5300) * **Form Factor:** DIMM 240-Pin * **Error Correction Code (ECC):** Yes * **Registered/Unbuffered:** Registered * **Cas Latency:** CL5 Asking $5per stick. If this ad is still up, it's still available, so no need to ask! Happy upgrading!