Replacement for 661-5556: Drop-In Alternatives We Stock
Looking for a replacement for the 661-5556 (661-5556 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module for MacBook Pro 13)? 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 661-5556
| SKU | 661-5556 |
|---|---|
| Product | 661-5556 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module for MacBook Pro 13 |
| Current price | $130.70 |
| Stock status | In Stock |
| Detail page | View 661-5556 › |
Drop-in replacements for 661-5556
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.
661-5051 - Apple 2GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Dual Rank Memory Module for Xserve A1279
SKU: 661-5051
Price: $127.62
661-5004 - Apple 2GB DDR3-1066MHz PC3-8500 ECC Unbuffered CL7 240-Pin DIMM Dual Rank Memory Module
SKU: 661-5004
Price: $127.62
661-4839 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module for MacBook
SKU: 661-4839
Price: $130.70
661-5226 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module for MacBook Pro
SKU: 661-5226
Price: $130.70
661-5587 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module
SKU: 661-5587
Price: $130.70
661-5393 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module for MacBook
SKU: 661-5393
Price: $130.70
661-6348 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module
SKU: 661-6348
Price: $130.70
661-4815 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module for MacBook
SKU: 661-4815
Price: $130.70
661-5453 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module
SKU: 661-5453
Price: $130.70
661-6347 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module
SKU: 661-6347
Price: $130.70
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.