Replacement for 661-3993: Drop-In Alternatives We Stock
Looking for a replacement for the 661-3993 (661-3993 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Dual Rank Memory Module for MacBook Pro)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 661-3993
| SKU | 661-3993 |
|---|---|
| Product | 661-3993 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Dual Rank Memory Module for MacBook Pro |
| Current price | $145.07 |
| Stock status | In Stock |
| Detail page | View 661-3993 › |
Drop-in replacements for 661-3993
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
661-3615 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin DIMM Memory Module for iMac G5
SKU: 661-3615
Price: $122.00
661-4189 - Apple 512MB DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM Single Rank Memory Module for Xserve A1196
SKU: 661-4189
Price: $130.75
661-4312 - Apple 512MB DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM Single Rank Memory Module
SKU: 661-4312
Price: $130.75
661-3929 - Apple 512MB DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM Single Rank Memory Module
SKU: 661-3929
Price: $130.75
661-3961 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Single Rank Memory Module for MacBook Pro
SKU: 661-3961
Price: $142.30
661-4393 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Single Rank Memory Module for MacBook Pro
SKU: 661-4393
Price: $142.30
661-4573 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Single Rank Memory Module for MacBook Pro
SKU: 661-4573
Price: $142.30
661-4213 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Single Rank Memory Module for MacBook Pro
SKU: 661-4213
Price: $142.30
661-6167 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Single Rank Memory Module
SKU: 661-6167
Price: $142.30
661-4705 - Apple 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Single Rank Memory Module for MacBook Pro
SKU: 661-4705
Price: $142.30
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.