OWC 4GB DDR3L 1600 CL11 1.35V 204-pin SODIMM memory upgrade ThinkPad W550s X250 Yoga 460
- 4GB
- 204-Pin DDR3L Non-E…
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OWC
A 4 GB DDR4 SODIMM running at 2133 MHz CL15 1.2 V, built for the Alienware Alpha R2
This 4 GB DDR4 module is built for the Alienware Alpha R2 mini desktop. It uses the 260-pin SODIMM form factor and runs at 2133 MHz with CL15 latency at 1.2 V. The unbuffered non-ECC design matches the original specification for a straightforward capacity increase.
The DDR4 2133 MHz JEDEC standard fixes both the data rate and the 1.2 V operating voltage, so the module cannot run faster or at lower voltage without leaving specification. Builders who want higher frequencies or tighter timings must choose a platform that supports a faster JEDEC speed grade.
The single 4 GB rank determines how many applications and files can stay resident before the system swaps to storage. Buyers who need more simultaneous workloads will require additional modules or higher-capacity sticks, while lighter use cases are served by this upgrade.
| Brand | OWC |
|---|---|
| Part Number | 2S1D41R804GB |
| Capacity | 4GB |
| Type | 260-Pin DDR4 Non-ECC SODIMM |
| Speed | DDR4 2133 (PC4 17000) |
| CAS Latency | CL15 |
| Voltage | 1.2V |
| ECC | No |
| Buffered/Registered | Unbuffered |
| Rank | 1Rx8 |
| Heat Spreader | No |
| Compatible System | Alienware Alpha R2 |
Other versions of this model
Same family, different memory, cooler or clock — compare before you commit.
This module provides exactly 4GB of DDR4 2133MHz memory; choose it if you need a single 4GB stick or are filling a specific slot, otherwise select a higher-capacity kit that matches the system's maximum supported memory.
The 2133MHz rating sets the maximum data rate the module can deliver; in the Alpha R2 the memory controller will run it at this speed or the highest supported frequency, giving standard DDR4 bandwidth for typical applications.
The 260-pin SODIMM form factor is the standard DDR4 laptop module; it fits the Alpha R2's memory slot and the JEDEC PC4-17000 specification caps the transfer rate at 2133MHz with CL15 latency.
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