So I'm beginning the phase of my lab upgrade where I slowly buy DDR4 and Xeon 2600-V4 chips and Dell 13th Gen servers and the like. Aspiration for some, old hat for others. I know. I'm shopping for LRDIMMs at the moment for the NAS SAN, and I'm looking at 3 different sticks of RAM from 3 different brands, and the timings are wierd. I'll paste them below, just the timings:

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• PC4-2400T-LE2-11
• PC4-2400T-LD1-11-MC0
• PC4-2400T-LD2-11

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So I recon the 11 is either the RAS or the CAS, and 11 cycles seems pretty good, but also pretty standard, but the chart here [Wikipedia: DD4 SDRAM] says that the T in the name means CL/tRCD/tRP with cycle counts of 17-17-17 and a wall clock CAS Latency of 14.16ns. Neither of those match the value of 11, and I don't know what the LE2, LD2, and LD1 mean, let alone the MC0, which I assume to be some proprietary timing to that brand specifically.

They all cost relatively similar prices, and all things being equal, I doubt I would notice a real world workload performance difference between the, but I really like to understand what I'm making a decision on when I make a decision, so some information on how to interpret these timings more clearly would be very much appreciated. Thank you, everyone!