DDR3 dims are in excellent shape, these were testers when I was cold building a lot of Office Graphics Workstations

I have had these in a box for years, just resting, no reason why they wouldn't be good

if you have a older system with 2 open slots add another 2 gig's and your golden

on to the specs:

The G.SKILL F3-10666CL8D-2GBHK

• is a 2GB dual-channel desktop memory kit (marketed as 2x1GB modules) featuring DDR3-1333 (PC3 10666) memory with CAS latency CL8

• Capacity: 2GB (marketed as a 2 x 1GB dual-channel kit).

• Memory Type: DDR3 SDRAM.

• Speed: 1333 MHz (PC3 10666).

• Latency: CL8 (8-8-8-21 timings are typical for the 4GB kit variant, the 2GB kit has 8-8-8 timings).

• Voltage: 1.5V.

• Form Factor: 240-pin DIMM.

• Error Checking: Non-ECC.

• Buffering: Unbuffered.

• Features: Includes heat spreaders.

Recommended Use: High Performance or Gaming Memory, compatible with dual channel Intel Core i5/i7 and AMD AM3 platforms.