256GB Apple 17+7 Pin PCIe Blade SSD for MacBook Air A1465 A1466 Mid 2012

This 256GB Apple PCIe blade SSD uses the proprietary 2-section “17+7 pin” edge connector shown in the photo (short-top / long-bottom contact layout). It is designed specifically for select MacBook Air systems that use this exact Apple blade SSD connector.

This listing is for the SSD only.

Technical Specifications

• Capacity: 256GB
• Interface / Protocol: PCIe (Apple proprietary blade SSD)
• Connector: Apple proprietary 2-section edge connector (commonly referred to as “17+7 pin”)
• Form Factor: Apple blade SSD (not M.2, not mSATA)
• Operating Voltage: 3.3V
• Rated Current (as shown on label): 1.84A
• Manufacturer Model (as shown on label): Samsung MZ-EPC2560/0A2
• Printed Apple SSD Identifier (commonly seen): 655-1772 / 655-1772A (varies by revision)

Interchangeable / Replacement Part Numbers

Use the part numbers below to cross-match the same 256GB SSD type with the same connector family:

• 661-6620, 655-1772, 655-1772A, MZ-EPC2560/0A2, THNSNS256GMFP

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

✔ Apple MacBook Air:
A1465 (11-inch Mid 2012), A1466 (13-inch Mid 2012)

✔ Apple MacBook Air EMC:
EMC 2558 (A1465), EMC 2559 (A1466)

✔ Apple MacBookAir Identifier:
MacBookAir5,1 (A1465 Mid 2012), MacBookAir5,2 (A1466 Mid 2012)

✔ Common “Mid 2012” MacBook Air Orderable Models:
MD223LL/A, MD224LL/A (11-inch)
MD231LL/A, MD232LL/A, MD628LL/A, MD846LL/A (13-inch)

☑️ Key Features

☑️ Correct proprietary Apple blade SSD connector (2-section “17+7” style)
☑️ 256GB capacity for supported MacBook Air Mid-2012 systems
☑️ PCIe-based Apple storage module (not SATA)
☑️ Direct replacement style for compatible MacBook Air logic boards

⚙️ Fit Notes

• This SSD will NOT fit MacBook Air models from Mid 2013–2017 (those use a different Apple blade SSD generation/connector).
• This SSD will NOT fit MacBook Pro Retina SSD slots (different Apple blade connector families exist even though they look similar at a glance).