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ScaleFlux CSD 5520 3 TB

3 TB
Capacity
FX5016
Controller
TLC
Flash
PCIe 5.0 x4
Interface
U.2
Form Factor
Front
SSD Controller
Controller
NAND Die
NAND Die
The ScaleFlux CSD 5520 is a solid-state drive in the U.2 form factor, launched on August 1st, 2024. It is available in capacities ranging from 3 TB to 13 TB. This page reports specifications for the 3 TB variant. With the rest of the system, the ScaleFlux CSD 5520 interfaces using a PCI-Express 5.0 x4 connection. The SSD controller is the FX5016 from ScaleFlux, a DRAM cache chip is available. ScaleFlux has installed 176-layer TLC NAND flash on the CSD 5520, the flash chips are made by SK Hynix. Thanks to support for the fast PCI-Express 5.0 interface, performance is excellent. The CSD 5520 is rated for sequential read speeds of up to 14,000 MB/s and 11,000 MB/s write; random IO reaches 3200K IOPS for read and 430K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. ScaleFlux guarantees an endurance rating of 17520 TBW, a very high value, making this drive a good choice for write-intensive enterprise applications.

Solid-State-Drive

Capacity: 3 TB (3200 GB)
Variants: 3 TB 6 TB 13 TB
Overprovisioning: 1115.8 GB / 37.4 %
Production: Active
Released: Aug 1st, 2024
Part Number: Unknown
Market: Enterprise

Physical

Form Factor: U.2
Interface: PCIe 5.0 x4
Protocol: NVMe 2.0
Power Draw: 5.0 W (Idle)
Unknown (Avg)
18.0 W (Max)

Controller

Manufacturer: ScaleFlux
Name: FX5016
Architecture: ARM 64-bit Cortex-A53
Core Count: 8-Core
Foundry: TSMC FinFET
Process: 7 nm
Flash Channels: 16
Chip Enables: 4
Controller Features: DRAM (enabled)

NAND Flash

Manufacturer: SK Hynix
Name: V7
Type: TLC
Technology: 176-layer
Speed: 1600 MT/s
Capacity: Unknown
Toggle: 5.0
Topology: Charge Trap
Die Size: 47 mm²
(10.9 Gbit/mm²)
Planes per Die: 4
Word Lines: 196 per NAND String
89.8% Vertical Efficiency
Read Time (tR): 50 µs
Program Time (tProg): 380 µs
Die Read Speed: 1280 MB/s
Die Write Speed: 168 MB/s
Endurance:
(up to)		 3000 P/E Cycles
(30000 in SLC Mode)
Page Size: 16 KB
Block Size: 4224 Pages
Plane Size: 1084 Blocks

DRAM Cache

Type: DDR4
Capacity: Unknown

Performance

Sequential Read: 14,000 MB/s
Sequential Write: 11,000 MB/s
Random Read: 3,200,000 IOPS
Random Write: 430,000 IOPS
Endurance: 17520 TBW
Warranty: 5 Years
MTBF: 2.0 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

NAND Die:

Endurance: 1.500 to 3.000 P.E.C.
tPROG withouth Overhead: ~ 380 µs (accounting for ~ 168 MB/s of throughput per die)
tPROG w/ +/- 25% Overhead: ~ 507 µs (accounting for ~ 126 MB/s of throughput per die)
NAND string : H25G9TC18488 NAND MaxPE cycles: 1500 NAND Freq : 1200 Channel number: 4 CE number : 4 Total Bank: 16 Flash Type: TLC Blocks/CE: 1084 Pages/Block: 4224 Page Size
Aug 28th, 2024 01:18 EDT change timezone

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