Replacement for 661-7503: Drop-In Alternatives We Stock
Looking for a replacement for the 661-7503 (661-7503 - Apple iMac 21.5 LATE-2013 AIO Motherboard S1155)? 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 661-7503
| SKU | 661-7503 |
|---|---|
| Product | 661-7503 - Apple iMac 21.5 LATE-2013 AIO Motherboard S1155 |
| Current price | $473.68 |
| Stock status | In Stock |
| Detail page | View 661-7503 › |
Drop-in replacements for 661-7503
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.
661-7923 - Apple iMac 21.5 LATE-2013 AIO Motherboard with Intel i5-4570R 2.7GHz CPU
SKU: 661-7923
Price: $392.99
661-7517 - Apple 3.4GHz CPU Logic Board (Motherboard) for iMac 27-inch Late 2013 A1419
SKU: 661-7517
Price: $887.32
661-7504 - Apple 3.1GHz CPU Logic Board (Motherboard) for iMac 21.5-inch Late 2013
SKU: 661-7504
Price: $2,562.29
661-7514 - Apple 802.11ac Wireless LAN / Bluetooth Card for iMac 27-inch (Late 2013)
SKU: 661-7514
Price: $285.45
661-8146 - Apple Logic Board 8GB with Intel i5-4288U 2.60Ghz CPU for MacBook Pro 13-inch Late 2013
SKU: 661-8146
Price: $480.21
661-8145 - Apple Logic Board 8GB with Intel i5-4258U 2.40Ghz CPU for MacBook Pro 13-inch Late 2013
SKU: 661-8145
Price: $525.96
661-8302 - Apple Logic Board with Intel i7-4750HQ 2.00Ghz CPU for MacBook Pro 15-inch Retina Late 2013 8GB
SKU: 661-8302
Price: $811.63
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.