AddOn 2GB 200-Pin DDR2 SO-DIMM 667 MA939G/A-AA RAM

Name: AddOn 2GB 200-Pin DDR2 SO-DIMM 667 MA939G/A-AA
Brand: AddOn
SKU: MA939G/A-AA
Rating: 4.0 (1 reviews)

AddOn 2GB 200-Pin DDR2 SO-DIMM 667 (PC2 5300) MA939G/A-AA

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AddOn - Memory Upgrades 2GB 200-Pin DDR2 SO-DIMM DDR2 667 (PC2 5300) Laptop Memory Model MA939G/A-AA CAS Latency: 5 Voltage: 1.80V Buffered/Registered: Unbuffered Features: This Apple Computer MA939G/A compatible 2GB DDR2-667MHz Dual Rank Unbuffered 1.8V 200-pin CL5 SODIMM is 100% guaranteed to be compatible with your system and to work right the first time. Adding additional memory is the best way to increase the performance of your system. All our memory is built to strict JEDEC standards to meet or exceed the Tier 1 OEM's factory requirements. Our products are also guaranteed by federal law to not affect or void OEM warranties. Compatibility: Apple Notebooks: iMac 2.0GHz Core 2 Duo 20' Anodized Aluminum (MA876LL) iMac 2.0GHz Intel Core 2 Duo 20' (MA876LL) iMac 2.4GHz Core 2 Duo 20' Anodized Aluminum (MA877LL) iMac 2.4GHz Core 2 Duo 24' Anodized Aluminum (MA878LL) iMac 2.4GHz Intel Core 2 Duo 20' (MA877LL) iMac 2.4GHz Intel Cor...

AddOn 2GB 200-Pin DDR2 SO-DIMM 667 MA939G/A-AA image 1

Specifications Overview

Model	MA939G/A-AA
Type	200-pin DDR2 SODIMM
Speed	DDR2-667 MHz
Size	2GB (1 x 2GB)
CAS Latency	5
First Word Latency	14.99 ns
Voltage	1.8 V
Heat Spreader	No
ECC Support	No

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C

RAM First Word Latency Table (nanoseconds)

Latency is measured in nanoseconds, which is a combination of frequency and CAS. Both frequency increases and latency decreases result in better system performance (when latency is the same, always prefer higher frequency if possible).

Frequency (MT/s)

	667	800
5	14.99	12.50
6	17.99	15.00

CAS (clock cycles) Lower latency means faster memory.

Distribution of First Word Latencies for Similar RAM Modules

The histogram below shows the distribution of first word latencies (in nanoseconds) for all RAM modules of the same DDR type and frequency in our database. Each bar represents the number of modules that fall within a specific latency range. The highlighted bar indicates the latency of the currently selected RAM module.