LiTWELL DDR4 and DDR5 memory modules — U-DIMM and SO-DIMM for B2B and OEM supply

DDR Memory Modules

DDR4 and DDR5 memory module supply in U-DIMM and SO-DIMM form factors for project-based B2B sourcing.

Form Factors

DDR memory modules in two standard physical form factors.

U-DIMM

Full-size unbuffered DIMM for desktop systems, PC builders, and channel supply. Supplied in DDR4 and DDR5 generations.

DDR5 U-DIMM memory module

SO-DIMM

Compact form factor for laptop, mini PC, and system integration projects. Supplied in DDR4 and DDR5 generations.

DDR5 SO-DIMM memory module

DDR Generation

Both legacy and current-generation DDR supply for B2B buyers.

01

DDR4

Mainstream supply for legacy systems and channel distribution. Suitable for buyers serving installed-base refresh and continuing OEM lines.

02

DDR5

Current-generation supply for OEM, white-label, and brandless projects. Higher data rates with project-based capacity matching.

Available DDR Module Specifications

Reference RFQ ranges across DDR4 and DDR5 generations. Specifications outside this list supported via OEM project flow.

DDR4

Form Factor

U-DIMM

Data Rate Range

DDR4-2666 · DDR4-3200

Capacity Range

4GB · 8GB · 16GB · 32GB

Voltage Range

1.2V

Key Features

Bulk supply · RoHS

DDR4

Form Factor

SO-DIMM

Data Rate Range

DDR4-2666 · DDR4-3200

Capacity Range

4GB · 8GB · 16GB · 32GB

Voltage Range

1.2V

Key Features

Laptop · mini PC

DDR5

Form Factor

U-DIMM

Data Rate Range

DDR5-4800 · DDR5-5600

Capacity Range

16GB · 24GB · 32GB · 48GB

Voltage Range

1.1V – 1.2V

Key Features

On-Die ECC · Dual 32-bit subchannels

DDR5

Form Factor

SO-DIMM

Data Rate Range

DDR5-4800 · DDR5-5600

Capacity Range

16GB · 32GB

Voltage Range

1.1V – 1.2V

Key Features

On-Die ECC · Dual 32-bit subchannels

DDR5 O.C.

Form Factor

U-DIMM

Data Rate Range

DDR5-5600 · DDR5-6000 · DDR5-6400

Capacity Range

16GB · 32GB

Voltage Range

1.2V – 1.3V

Key Features

XMP 3.0 · AMD EXPO · On-Die ECC

DDR5 RGB

Form Factor

U-DIMM

Data Rate Range

DDR5-5600 · DDR5-6000 · DDR5-6400 · DDR5-7000 · DDR5-7200 · DDR5-7600 · DDR5-7800 · DDR5-8000

Capacity Range

16GB

Voltage Range

1.3V – 1.45V

Key Features

RGB · XMP 3.0 · AMD EXPO · On-Die ECC

Listed specifications represent confirmed supply ranges. Final speed grade, capacity, timing, packing, and label configuration confirmed per RFQ. DDR5 On-Die ECC refers to die-level error correction and does not replace system-level ECC (RDIMM / LRDIMM).

Request Custom DDR Configuration →

Use Cases

DDR memory supply across common B2B sourcing contexts.

Desktop

U-DIMM supply for desktop assembly, channel distribution, and project-based PC sourcing.

Laptop

SO-DIMM supply for laptop assembly, refurbishment, and OEM laptop production lines.

System Builders

Specification matching for system builders sourcing DDR memory across multiple SKUs and project lines.

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