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Longsys Foresee XP2350 FSB0C512G-F6C2700

XP2350 FSB0C512G-F6C2700

The FSB0C512G-F6C2700 is a PCIe 4 NVMe drive that seemingly launched in Q2 2025. This is a 512-GB, M.2 22 by 80 model but there are 1-TB, 2-TB, 4-TB and 8-TB as well as 80-mm, 42-mm and 30-mm variants on offer, too.

Performance

While there is no official product page, retailers list the 512-GB model's peak sequential read and write rates as 6.1 GB/s and 2.0 GB/s, respectively.

In our tests with AS SSD and DiskSpd, the latter is confirmed, but reads are much slower at 2.4 GB/s (DiskSpd) to 3.8 GB/s (AS SSD), which puts the XP2350 closer to good PCIe 3 SSDs than good PCIe 4 ones.

TypeSSD
SizeM.2 2280
Capacity512 GB
InterfaceNVMe
Announced01.06.2025

Benchmarks

Performance Rating - DiskSpd
23.2 pt (27%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.692 -97%
...
Phison PS5013 311CD0512GB
22.8 -2%
Samsung SSD PM981 MZVLB512HAJQ
22.9 -1%
Lenovo UMIS AM6A0 RPETJ512MKP1QDQ
22.9 -1%
SK Hynix PC711 512GB HFS512GDE9X073N
23 -1%
Kingston SA2000M8500G
23 -1%
Derlar FP3 NVMe M.2 SSD PCIe Gen 3.0X4 1 TB
23.1 0%
Corsair EX400U 4TB Portable SSD
23.1 0%
SK Hynix PC401 512GB M.2 (HFS512GD9TNG)
23.1 0%
Intel SSD 760p SSDPEKKW512G8
23.1 0%
Longsys Foresee XP2350 FSB0C512G-F6C2700
23.2
SK hynix HFS512GEJ4X113N
23.2 0%
ADATA XPG Gammix S50 1TB
23.3 0%
SK hynix PC801 HFS512GEJ9X110N
23.3 0%
Lexar 1024GB LNM6A1X001T-HNNNG
23.4 1%
Kston K765-1TB
23.5 1%
Samsung SSD 980 500GB (MZ-V8V500BW)
23.5 1%
Lenovo UMIS AM630 RPETJ1T24MGE2QDQ
23.5 1%
Toshiba XG6 KXG6AZNV512G
23.6 2%
SK Hynix HFM001TD3JX013N
23.6 2%
...
Kingston Fury Renegade G5 4TB
85.8 270%
0%
100%
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AS SSD - Copy Game
586 MB/s (10%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
363.5 MB/s (13%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
1528 MB/s (6%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
2355 Points (14%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
1206 Points (17%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
835 Points (13%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
0.1 ms (0%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
0.2 ms (1%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
949 MB/s (16%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
404 MB/s (8%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
138 MB/s (27%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
52.1 MB/s (17%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
1192 MB/s (11%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
3789 MB/s (30%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
172.8 MB/s (40%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
62.3 MB/s (18%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
702 MB/s (10%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
236 MB/s (3%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
1759 MB/s (17%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
2388 MB/s (25%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
1801 MB/s (12%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
5254 MB/s (30%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
5258 MB/s (31%)
+ 1 benchmarks and specifications   + Show comparison chart
0100200300400500600700800900100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400Tooltip
- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

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Klaus Hinum (Update: 2026-08-28)