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Rectangular 2.5 inch U.2 enterprise SSD with silver metal casing and label

SAMSUNG

SAMSUNG MZ-QL21T900 PM9A3 1.92TB enterprise SSD

SKU CH-PWY9-NNY1K MPN MZ-QL21T900

PCIe 4.0 NVMe drive delivering 6800 MB/s reads and 1 DWPD endurance for write-heavy server workloads

  • Form Factor2.5" U.2
  • Capacity1.92TB
  • Memory ComponentsV-NAND TLC
  • InterfacePCIe 4.0 x4 NVMe 1.4
  • ControllerSamsung Elpis Controller
  • CacheSamsung Low Power SDRAM

Options 1.92TB

Les versions barrées existent, mais ne sont pas disponibles ici.

  • 92 TB capacity for large enterprise datasets
  • Up to 6800 MB/s sequential read speeds up data access
  • 850,000 IOPS random read handles heavy workloads
  • 1 DWPD endurance with 3,504 TBW for sustained writes
  • 256-bit AES encryption protects sensitive data

Enterprise U.2 NVMe drive

The Samsung PM9A3 is a 1.92 TB enterprise solid-state drive built for servers and storage arrays that demand consistent throughput. It uses a 2.5 inch U.2 form factor with a PCIe 4.0 x4 interface and the Samsung Elpis controller. V-NAND TLC memory and low-power SDRAM cache support mixed read and write workloads in databases, virtualisation and analytics.

2.5 inch U.2 build and power profile

The drive measures 100.20 mm by 69.85 mm by 7.00 mm and weighs 90.00 g, fitting standard hot-swap bays without adapters. It draws 3.5 W idle, 10.0 W during reads and 12.5 W during writes, so backplane power budgets must account for sustained activity. Rated shock resistance of 1500 G and an operating range of 0 °C to 70 °C suit dense rack environments.

PCIe 4.0 x4 NVMe 1.4 limits

Sequential speeds reach 6800 MB/s read and 2700 MB/s write, while random 4 KB performance tops out at 850,000 IOPS read and 130,000 IOPS write. Endurance is 1 DWPD, equivalent to 3504 TBW over the warranty period. Workloads that exceed this write intensity or require higher random write throughput will need a drive with greater endurance.

Points forts

  • 92 TB capacity for large enterprise datasets
  • Up to 6800 MB/s sequential read speeds up data access
  • 850,000 IOPS random read handles heavy workloads
  • 1 DWPD endurance with 3,504 TBW for sustained writes
  • 256-bit AES encryption protects sensitive data

Caractéristiques

BrandSAMSUNG
ModelPM9A3
Part NumberMZ-QL21T900
Form Factor2.5" U.2
Capacity1.92TB
Memory ComponentsV-NAND TLC
InterfacePCIe 4.0 x4 NVMe 1.4
ControllerSamsung Elpis Controller
CacheSamsung Low Power SDRAM
Max Sequential ReadUp to 6800 MBps
Max Sequential WriteUp to 2700 MBps
4KB Random ReadUp to 850,000 IOPS
4KB Random WriteUp to 130,000 IOPS
Endurance1 DWPD
MTBF2,000,000 hours
Features3,504 TBW
Power Consumption (Idle)3.5W
Power Consumption (Active)Read/Write: 10.0W / 12.5W
Operating Temperature0°C ~ +70°C
Max Shock Resistance1,500G & 0.5 ms (Half sine)
Height7.00mm
Width69.85mm
Depth100.20mm
Weight90.00 g
Poids d’expédition0.45 kg
Dimensions du colis178 × 127 × 15 mm

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Questions sur cet article

Does PCIe 4.0 x4 NVMe 1.4 limit this drive to 6800 MB/s sequential read?

The interface supports up to 6800 MB/s sequential read and 2700 MB/s sequential write, with 850,000 IOPS random read and 130,000 IOPS random write.

What physical space does the 2.5" U.2 form factor need?

The drive measures 100.20 mm deep, 69.85 mm wide and 7.00 mm high, weighing 90.00 g, and fits a standard U.2 backplane slot.

How is the U.2 drive installed in a server?

Slide the drive into the hot-swap bay until the U.2 connector engages, then lock the carrier latch to secure it.

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