OWC 4GB DDR4 PC4-21300 2666MHz NON-ECC. Compatibility QNAP TS-1253DU-RP. COMPATIBLE PART NUMBERS: QNAP RAM-4GDR4A0-SO-2666, RAM-4GDR4T0-SO-2666, RAM-4GDR4T1-SO-2666. Watch our OWC Basic Installation Video for Help.
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