SAT5221-3840G Synology 3.84TB SATA 6Gbps Solid State Drive (SSD)
SAT5221-3840G Overview
The Synology SAT5221‑3840G is a 3.84 TB enterprise‑grade SATA Solid State Drive designed to meet the demands of professional storage systems, especially Synology NAS units and server environments that require consistent performance, endurance, and reliability. Built with a SATA 6 Gb/s interface and a 2.5‑inch, 7 mm form factor, this SSD fits into standard internal drive bays and delivers sequential read and write speeds up to approximately 500 MB/s, which is near the theoretical limit of the SATA interface. It also offers strong random access performance — around 90,000 IOPS for reads and 30,000 IOPS for writes — to help keep latency low during mixed workload operations such as virtualization, database access, or general file serving.
$2,379.00
SAT5221-3840G Technical Specifications
Synology 3.84TB SATA 6Gbps 2.5-inch Internal Solid State Drive (SSD)
| Capacity | 3.84 Tb |
|---|---|
| Form Factor | 2.5 (7mm) |
| Interface | Sata 6 Gb/s |
Performance
| Sustained Sequential Read (128 Kb, Qd32) | 500 Mb/s |
|---|---|
| Sustained Sequential Write (128 Kb, Qd32) | 500 Mb/s |
| Sustained Random Read (4kb, Qd32) | 90,000 Iops |
| Sustained Random Write (4kb, Qd32) | 30,000 Iops |
Endurance And Reliability
| Terabytes Written (tbw) | >7,000 Tb |
|---|
Power Consumption
| Active Read (typical) | 4.5 W |
|---|---|
| Active Write (typical) | 5 W |
| Idle | 1.2 W |
Temperature
| Operating Temperature | 0°c To 70°c (32°f To 158°f) |
|---|
Storage Temperature
- 40°c To 85°c (
- 40°f To 185°f)
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SAT5221-3840G Synology 3.84TB ...
$2,379.00