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Seagate Nytro 5550H 1.6 TB

1.6 TB
Capacity
Phison X1 (E20)
Controller
TLC
Flash
PCIe 4.0 x4
Interface
U.2
Form Factor
Front
SSD Controller
Controller
NAND Die
NAND Die
The Seagate Nytro 5550H is a solid-state drive in the U.2 form factor, launched in August 2022. It is available in capacities ranging from 800 GB to 13 TB. This page reports specifications for the 1.6 TB variant. With the rest of the system, the Seagate Nytro 5550H interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the PS5020-E20 X1 from Phison. Seagate has installed 128-layer TLC NAND flash on the Nytro 5550H, the flash chips are made by SK Hynix. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The Nytro 5550H is rated for sequential read speeds of up to 7,400 MB/s and 3,700 MB/s write; random IOPS reach up to 1550K for reads and 315K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. Seagate guarantees an endurance rating of 8700 TBW, a very high value, making this drive a good choice for write-intensive enterprise applications.

Solid-State-Drive

Capacity: 1.6 TB (1600 GB)
Variants: 800 GB 1.6 TB 3 TB 6 TB 13 TB
Overprovisioning: 557.9 GB / 37.4 %
Production: Active
Released: Aug 2022
Part Number: XP1600LE70005
Market: Enterprise

Physical

Form Factor: U.2
Interface: PCIe 4.0 x4
Protocol: NVMe 1.4
Power Draw: 6.0 W (Idle)
Unknown (Avg)
15.0 W (Max)

Controller

Manufacturer: Phison
Name: PS5020-E20 X1
Architecture: ARM 32-bit Cortex-R5 (2-core) + AndesCore 32-bit N25F RISC-V (32-core)
Core Count: 34-Core
Foundry: TSMC FinFET
Process: 12 nm
Flash Channels: 16
Chip Enables: 4
Controller Features: DRAM

NAND Flash

Manufacturer: SK Hynix
Name: V6
Type: TLC
Technology: 128-layer
Speed: 1400 MT/s
Capacity: Unknown
Toggle: 4.0
Topology: Charge Trap
Die Size: 63 mm²
(8.1 Gbit/mm²)
Planes per Die: 4
Decks per Die: 2
Word Lines: 147 per NAND String
87.1% Vertical Efficiency
Endurance:
(up to)		 3000 P/E Cycles
Page Size: 16 KB
Block Size: 1536 Pages
Plane Size: 722 Blocks

DRAM Cache

Type and Size: Unknown

Performance

Sequential Read: 7,400 MB/s
Sequential Write: 3,700 MB/s
Random Read: 1,550,000 IOPS
Random Write: 315,000 IOPS
Endurance: 8700 TBW
Warranty: 5 Years
MTBF: 2.5 Million Hours
Drive Writes Per Day (DWPD): 3.0
Write Cache: N/A

Features

TRIM: Yes
SMART: Yes
Power Loss Protection: Yes
Encryption:
  • AES-256
  • TCG Opal
RGB Lighting: No
PS5 Compatible: No

Notes

Controller:

Could be more cores since Phison specifies "2 Cortex-R5 CPU cores" with "dozens" of CoXprocessors.
ARM 32-bit Cortex-R5 (2-core) + AndesCore 32-bit N25F RISC-V (32-core)
"The X1 SSD solution CPU complex is composed of two performance and power efficient ARM R5 CPUs and dozens of small CPU co-processors that complete computationally heavy, redundant tasks at high speed with a minimum of power consumption."

NAND Die:

Each die has 7 SGSs with 3 SGDs.
Jun 1st, 2024 05:33 EDT change timezone

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