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Synology SAT5221 3.84 TB 2.5 inch SATA internal SSD

Synology Inc.

Synology SAT5221 3.84 TB internal SSD 2.5" SATA

SKU CH-EJKE-XMJ95

Enterprise-class 2.5" SATA SSD with 3.84 TB capacity for demanding storage workloads

  • Total capacity3.84 TB
  • Form factor2.5 in (6.35 cm)
  • Enterprise-grade reliability from Synology engineering
  • 84 TB capacity stores large datasets
  • 5-inch form factor fits standard drive bays
  • SATA 600 interface integrates with existing controllers

Synology SAT5221 Enterprise SATA SSD

The Synology SAT5221 is a 3.84 TB internal solid-state drive built for enterprise workloads. It uses a 2.5 inch form factor and connects via a SATA 6Gb/s interface. The drive targets businesses and IT professionals who need consistent read and write performance for always-on storage arrays.

Thermals noise and power draw in normal use

The SATA interface and 2.5 inch design fit standard drive bays and hot-swap trays without extra adapters. Solid-state construction eliminates mechanical noise and reduces vibration compared with spinning disks. Typical power consumption stays low during sustained read and write operations, helping to keep chassis temperatures manageable in dense rack deployments.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $2,275.99
Pricier than about 91% of the 1,994 comparable items (median $180.49).
Total capacity 3.84 TB
Higher than about 89% of the 1,368 comparable items (median 1 TB).
Price per TB $592.71 per TB
Pricier than about 90% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSynology
Total capacity3.84 TB
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

Will this 2.5-inch SATA drive fit my Synology NAS drive bay?

The SAT5221 uses a standard 2.5-inch form factor and SATA 600 interface, matching the drive trays in most Synology NAS models that accept 2.5-inch SATA SSDs.

Is any extra hardware needed to install this SSD in a 3.5-inch bay?

A 2.5-to-3.5-inch drive bracket or adapter is required when the chassis only provides 3.5-inch drive bays.

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