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Green 288-pin DDR4 DIMM module with black chips

Qnap

Qnap RAM-8GDR4ECP0-UD2666 8 GB DDR4 2666 MHz ECC memory upgrade

SKU CH-CYBR-3SZAM MPN RAM-8GDR4ECP0-UD2666

Adds 8 GB of DDR4 ECC memory at 2666 MHz to compatible QNAP NAS servers

  • ECC protection safeguards data integrity on critical workloads
  • 2666 MHz DDR4 speed feeds NAS throughput demands
  • 20 V operation reduces power draw and heat
  • Unbuffered 288-pin DIMM fits QNAP TS-983XU enterprise servers
  • 8 GB capacity expands memory for virtualization and caching

Purpose-built NAS upgrade

This 8 GB DDR4 module is engineered for the QNAP TS-983XU Enterprise NAS Server. It adds ECC protection to maintain data integrity during continuous operation. The unbuffered design suits the platform's memory architecture. System administrators expanding capacity for virtualization or heavy file workloads will use this part.

Verify slot and firmware

Confirm the TS-983XU has an available 288-pin DIMM slot before ordering. Check the current firmware version against QNAP's compatibility matrix for this module. The board must accept 1.20 V DDR4-2666 unbuffered ECC memory. Mixed speeds will downclock all installed sticks to the lowest common rate.

Fits the enterprise chassis

The DIMM installs directly into the server's memory slots without adapters or brackets. ECC capability frees the CPU from single-bit error correction overhead. Unbuffered signalling keeps latency low for the supported platform. The 4.23 oz weight adds no structural load to the motherboard.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $157.99
Cheaper than about 61% of the 21,161 comparable items (median $397.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Size & build
Shipping weight0.23 kg
Package size178 × 51 × 13 mm

Questions about this item

Does the package contain only the 288-pin DIMM or are any tools or brackets included?

The module is supplied as a single 8 GB DDR4 DIMM; no installation tools or mounting brackets are included.

My NAS is the TS-983XU — is this the correct capacity and speed for that model?

This 8 GB DDR4-2666 ECC unbuffered DIMM matches the specification listed for the TS-983XU enterprise NAS server.

Will the 2666 MHz rating actually run at that speed once installed in the TS-983XU?

The memory operates at 2666 MHz at 1.20 V with ECC error checking when used in the compatible TS-983XU system.

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