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The Kingston KTD-PE432LQ/128G is a 128GB DDR4-3200 LRDIMM built for Dell PowerEdge servers. It is quad rank with x4 chips, runs at 1.2V, and has 288 pins. Kingston lists its bandwidth at 25.6 GB/s.
| Type | Models |
|---|---|
| Rack | R640, R650, R740xd, R750, R750xa, R750xs, R840, R940, R940xa, R6515, R6525, R7515, R7525 |
| Tower | T640 |
| Modular | C6420, C6520, FC640, M640, MX740c, MX750c, MX840c |
| Edge | XR2, XE2420 |
| Appliance | VxRail E560 and E560F |
Kingston builds its memory to each brand's exact system list, so this module is meant for those Dell systems. Check your own model on Kingston's lookup before you plan a build.
A 24-slot server fills to 3TB with this module. A 16-slot blade such as the M640 reaches 2TB. Kingston notes that RDIMM and LRDIMM modules can't mix inside one Dell system, so pick one type for the whole server.
A server runs the module at the lower of 3200 MT/s and the processor's limit. Kingston lists 32Gbit DDP DRAM on the module, which stacks two dies per package to reach 128GB on one stick. Operating range is 0 to 85°C.
Kingston builds and tests it for Dell systems. Check your own server's guide for LRDIMM and 128GB support before you use it elsewhere.
DDP means dual-die package: two memory dies stacked in one chip. It is how 128GB fits on a single module.
Check your server's BIOS version against Dell's notes for 128GB LRDIMM support before you install.
LRDIMM. Some listings write RDIMM by mistake, so read the part number and the LR tag.
| Brand | Kingston |
|---|---|
| Part number | KTD-PE432LQ/128G |
| Made for | Dell PowerEdge |
| Capacity | 128GB |
| Type | DDR4 LRDIMM |
| Speed | 3200 MT/s (PC4-25600) |
| Rank | 4R x4 (quad rank) |
| CAS latency | CL22 |
| DRAM | 32Gbit DDP |
| Voltage | 1.2V |
| Pins | 288 |
| Operating range | 0 to 85°C |
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