4X77A90994
Lenovo ThinkSystem TruDDR5 256GB 6400MHz 4Rx4 3DS RDIMM
- Genuine Lenovo
- New, factory sealed
- Pay by card, PayPal or T/T
T/T bank transfer
- Tax invoiceIssued by Rabash Technologies Pte. Ltd., Singapore
4X77A90994 at a glance
- Lenovo ThinkSystem TruDDR5 256GB 6400MHz 4Rx4 3DS RDIMM
- Capacity: 256GB
- Type: DDR5 RDIMM
- Speed: 6400MHz
- Rank: 4Rx4
- Fits: ThinkSystem SR650 V4; ThinkSystem SR630 V4
- New, factory sealed
Specifications
| Part number | 4X77A90994 |
|---|---|
| Brand | Lenovo |
| Series | ThinkSystem |
| Capacity | 256GB |
| Type | DDR5 RDIMM |
| Speed | 6400MHz |
| Rank | 4Rx4 |
| Fits | ThinkSystem SR650 V4; ThinkSystem SR630 V4 |
| Condition | New, factory sealed |
Compatibility
- ThinkSystem SR650 V4
- ThinkSystem SR630 V4
Description
This 256GB TruDDR5 3DS RDIMM has a 4Rx4 organisation and a published 6400MHz rating. Lenovo lists the exact option for ThinkSystem SR650 V4 and SR630 V4. For P-core systems, use 8 or 16 modules per processor; water-cooled memory configurations have separate population limits. Install identical option numbers and balance quantities across two processors. Actual speed depends on the processor and population, reaching up to 6400MHz at one DIMM per channel and 5200MHz at two. This option is restricted to P-core processors in the SR630 V4. The SR650 V4 guide lists twelve DIMMs per CPU as planned for November 2026; that population is excluded here.
Typical uses
- Expanding compatible server memory
- Replacing a matching memory module
Before you order
- Check memory generation, rank and host compatibility
- Follow the host memory population rules
- Confirm the listing condition and included items
FAQ
What condition is the 4X77A90994?
This listing is new, factory sealed.
Shipping and returns
Ships from Singapore. Delivery options are confirmed for your destination.
Shipping detailsSee the returns and warranty policy for applicable terms.
Returns and warrantyQuotes are valid for 7 days, payable by card, PayPal or T/T.
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