Just received my 32gb ram for my late 2013 imac 27" and every time i install the "bip" signals and computer does not turn on.

Yes, I had the same issue and so I contacted their tech support by email and they were very responsive and sent me the correct ram cards and a return package to return the incorrect cards. They were very efficient and professional. I was very pleased and I am writing this reply on my late 2013 27" Mac with the new 32gb ram on board.

2 individual memories of 8gb each

will this work with my MacBook Pro mid 2014?

It worked great with my late 2012. But they will help if you are not sure about yours.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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8GB Memory Kit (2x4GB) for Apple Macbook and Macbook Pro Early/Late 2011 Ram A1297 A1286 A1278 MD311LL/A MD322LL/A MD318LL/A MD314LL/A MD313LL/A MC725LL/A MC723LL/A MC721LL/A MC724LL/A MC700LL/A

Product ID: 130050919

Details

Brand
A-Tech
Computer memory size
8 GB
Memory speed
1333 MHz
RAM memory technology
DDR3

⚡1600MHz DDR3 speed

💾16GB total capacity (2x8GB)

🔌204-pin SO-DIMM form factor

₨53228

Duties & taxes included

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your vintage Mac’s game with a power-packed 16GB RAM boost!

EFFICIENT 1600 M HZ SPEED - Experience smooth data transfer at PC3-12800 speeds, reducing lag and enhancing workflow efficiency.
LOW VOLTAGE HIGH STABILITY - Runs at 1.35V with non-ECC unbuffered technology for reliable, energy-efficient operation.
BOOST YOUR MACS MULTITASKING POWER - Upgrade to 16GB DDR3 RAM for seamless performance on legacy MacBook Pro, iMac, and Mac Mini models.
OPTIMIZED FOR MID 2012 TO MID 2015 MACS - Perfectly compatible with MacBook Pro (13"/15"), iMac Retina 5K, and Mac Mini models ensuring plug-and-play ease.
EXTEND YOUR MACS LIFESPAN WITHOUT BREAKING THE BANK - Ideal for professionals who want to keep their trusted Macs running fast without costly upgrades.

The A-Tech 16GB Memory RAM Kit (2x8GB) is a DDR3 1600MHz PC3-12800 SO-DIMM upgrade designed specifically for mid-2012 to mid-2015 MacBook Pro, iMac, and Mac Mini models. With 204 pins, non-ECC unbuffered technology, and low 1.35V voltage, it delivers reliable, efficient performance to extend the life and speed of your legacy Apple devices.

Specifications

ASIN	B00L3QENSA
Best Sellers Rank	205,591 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,641 in Computer Memory
Brand Name	A-Tech
Column Address Strobe Latency	9
Compatible Devices	MacBook Pro Early 2011 (13 / 15 / 17 inch) & Late 2011 (13 / 15 / 17 inch), MacBookPro8,1 MacBookPro8,2 MacBookPro8,3
Customer Reviews	4.6 4.6 out of 5 stars (610)
Data Transfer Rate	10600 Megabytes Per Second
Form Factor	SO-DIMM
Item Weight	23 g
Manufacturer	A-Tech
Manufacturer Part Number	ATMAC4G2D3S1333NN
Memory Form Factor	SODIMM
Memory Generation	DDR4
Memory Speed	1333 MHz
Model Name	A-Tech 8GB (2x4GB)
Model Number	ATMAC4G2D3S1333NN
Number of Items	2
Number of Pins	204
Product Features	Non Ecc
RAM Memory Technology	DDR3
RAM Size	8 GB
Unit Count	2.0 count

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