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Score: 2
1 review

V7 Nano USB 2.0 32GB Zwart

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V7 Nano USB 2.0 32GB Zwart Review

+2
cj1 30 december 2016, laatste update op 13 januari 2017, 331 views

V7 Nano USB 2.0 32GB Zwart

Een erg lichte nano USB stick, die zich sequentieel redelijk snel laat beschrijven en lezen. Random schrijven is erg traag tot heel erg traag. Er zijn weinig slim fit USB flash drives die random schrijven nog slechter doen.

Pluspunten

  • licht: 1,57 gram
  • 5 jaar garantie

Minpunten

  • aluminium huis + kunststof greep
  • <= 1,0 IOPS random write 4K
  • 256K random schrijven is traag: 0.47 MB/sec
  • 500 mA declared power
  • onhandig uitnemen (weinig grip)

Eindoordeel

Score: 2Per criterium
Prestaties Score: 1
Prijs Score: 2

Verpakking

Voorzijde
[img]AkFS8oGb[/img]
Achterzijde
[img]qvD6bJfl[/img]

Standby energieverbruik

Mux USB sensor
[img]bsSI8yVi[/img]
Zes Zimmer LMG95
205 mW / 40,3 mA
[img]Z5YvGOeI[/img]

Afmetingen

Lengte: 22,84 mm
Connector
breedte: 12,32 mm
hoogte: 4,58 mm
binnenwerkse hoogte gevuld: 2,33 mm
binnenwerkse hoogte open = hoogte - binnenwerkse hoogte gevuld: 1,88 mm
plaatdikte: 0,40 mm

Gewicht: 1,57 gram

[img]JE442SmK[/img]

Uiterlijk

[img]ZzM9lkFh[/img]
[img]BeZX7E71[/img]
[img=620]uaMZ3UMF[/img]

Prestaties: CrystalDiskMark

[img=394]5NQR9Zth[/img]
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 21.887 MB/s
Sequential Write (Q= 32,T= 1) : 11.226 MB/s
Random Read 4KiB (Q= 32,T= 1) : 3.221 MB/s [ 786.4 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 0.001 MB/s [ 0.2 IOPS]
Sequential Read (T= 1) : 22.034 MB/s
Sequential Write (T= 1) : 14.267 MB/s
Random Read 4KiB (Q= 1,T= 1) : 3.312 MB/s [ 808.6 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 0.004 MB/s [ 1.0 IOPS]

Test : 1024 MiB [E: 0.0% (0.0/30.5 GiB)] (x5) [Interval=5 sec]

Prestaties: Xbench

Uncached
Sequential
write 4K: 11.29 MB/sec
write 256K: 9.99 MB/sec
read 4K: 5.81 MB/sec
read 256K: 30.37 MB/sec
Random
write 4K: 0.02 MB/sec
write 256K: 0.47 MB/sec
read 4K: 4.47 MB/sec
read 256K: 17.43 MB/sec

ChipGenius

Description: [E:]USB Mass Storage Device(SMI USB DISK)
Device Type: Mass Storage Device

Protocal Version: USB 2.00
Current Speed: High Speed
Max Current: 500mA

USB Device ID: VID = 090C PID = 1000

Device Vendor: SMI Corporation
Device Name: USB DISK
Device Revision: 1100

Manufacturer: SMI
Product Model: USB DISK
Product Revision: 1100

Controller Vendor: SMI
Controller Part-Number: SM3259AA - ISP 160407-DG1
Flash ID code: 454C98A3 - SanDisk - 2CE/Single Channel [TLC] -> Total Capacity = 32GB

Flash ID mapping table
----------------------------
[Channel 0] [Channel 1]
454C98A3 --------
454C98A3 --------

Antspec Flash drive info

Controller: Silicon Motion SM3259 AB
Possible Memory Chip(s):
SanDisk SDTNSIAMA-016G
Memory Type: TLC
Flash ID: 454C98A3 7651
Flash CE Summary: 2
Chip F/W: ISP 160407-DG1
MP: ::::0::
MPTOOL Ver.: 16.04.07
VID: 090C
PID: 1000
Manufacturer: SMI Corporation
Product: USB DISK
Query Vendor ID: SMI
Query Product ID: USB DISK
Query Product Revision: 1100
Physical Disk Capacity: 32715571200 Bytes
Windows Disk Capacity: 32699531264 Bytes
Internal Tags: QVAG-QSCY
File System: FAT32
Relative Offset: 48 KB
USB Version: 2.00
Declared Power: 500 mA
ContMeas ID: FF44-10-EE

Linaro flashbench

$ sudo flashbench -a /dev/sdb --blocksize=1024
align 8589934592 pre 786µs on 1.05ms post 970µs diff 169µs
align 4294967296 pre 841µs on 1.06ms post 970µs diff 157µs
align 2147483648 pre 841µs on 1.04ms post 971µs diff 137µs
align 1073741824 pre 842µs on 1.07ms post 974µs diff 157µs
align 536870912 pre 841µs on 1.05ms post 973µs diff 138µs
align 268435456 pre 842µs on 1.04ms post 969µs diff 135µs
align 134217728 pre 844µs on 1.04ms post 971µs diff 133µs
align 67108864 pre 883µs on 1.12ms post 1.04ms diff 157µs
align 33554432 pre 852µs on 1.09ms post 1.01ms diff 162µs
align 16777216 pre 882µs on 1.11ms post 1.03ms diff 157µs
align 8388608 pre 879µs on 1.12ms post 1.04ms diff 163µs
align 4194304 pre 880µs on 1.12ms post 1.04ms diff 158µs
align 2097152 pre 888µs on 1.1ms post 1.04ms diff 133µs
align 1048576 pre 892µs on 1.09ms post 1.03ms diff 133µs
align 524288 pre 888µs on 1.1ms post 1.04ms diff 133µs
align 262144 pre 893µs on 1.1ms post 1.03ms diff 132µs
align 131072 pre 887µs on 1.1ms post 1.04ms diff 130µs
align 65536 pre 885µs on 1.08ms post 1.03ms diff 125µs
align 32768 pre 888µs on 1.09ms post 1.04ms diff 133µs
align 16384 pre 888µs on 1.09ms post 1.03ms diff 133µs
align 8192 pre 966µs on 966µs post 959µs diff 3.87µs
align 4096 pre 1.01ms on 1ms post 990µs diff 2.92µs
align 2048 pre 1.02ms on 1.02ms post 1.01ms diff 2.65µs
Find-fat
$ sudo flashbench --find-fat /dev/sdb
4MiB 27.5M/s 27.6M/s 27.6M/s 27.5M/s 28.5M/s 27.5M/s
2MiB 26.3M/s 26.4M/s 26.4M/s 27.2M/s 27.2M/s 27.2M/s
1MiB 26.4M/s 27.3M/s 26.5M/s 25.7M/s 26.5M/s 26.5M/s
512KiB 25.2M/s 25.2M/s 25.2M/s 25.2M/s 25.3M/s 25.3M/s
256KiB 22M/s 22.6M/s 22.6M/s 22.6M/s 22.6M/s 22.6M/s
128KiB 19.1M/s 19.7M/s 19.3M/s 18.9M/s 18.9M/s 19.3M/s
64KiB 15.2M/s 15.2M/s 15.3M/s 15.3M/s 15.2M/s 15.3M/s
32KiB 10.3M/s 10.3M/s 10.4M/s 10.4M/s 10.3M/s 10.4M/s
16KiB 5.73M/s 5.82M/s 5.78M/s 5.81M/s 5.78M/s 5.78M/s
open UA: 7
$ sudo flashbench -O --erasesize=$[4 * 1024 * 1024] --blocksize=$[256 * 1024] /dev/sdb --random --open-au-nr=1
4MiB 25.8M/s
2MiB 27.2M/s
1MiB 26.5M/s
512KiB 25.2M/s
256KiB 22.6M/s

$ sudo flashbench -O --erasesize=$[4 * 1024 * 1024] --blocksize=$[256 * 1024] /dev/sdb --random --open-au-nr=3
4MiB 27.8M/s
2MiB 27M/s
1MiB 26.9M/s
512KiB 24.9M/s
256KiB 21.6M/s

$ sudo flashbench -O --erasesize=$[4 * 1024 * 1024] --blocksize=$[256 * 1024] /dev/sdb --random --open-au-nr=4
4MiB 27.5M/s
2MiB 27M/s
1MiB 25.9M/s
512KiB 24.5M/s
256KiB 21.7M/s

$ sudo flashbench -O --erasesize=$[4 * 1024 * 1024] --blocksize=$[256 * 1024] /dev/sdb --random --open-au-nr=6
4MiB 27.3M/s
2MiB 26.7M/s
1MiB 26.1M/s
512KiB 24.4M/s
256KiB 21.7M/s

$ sudo flashbench -O --erasesize=$[4 * 1024 * 1024] --blocksize=$[256 * 1024] /dev/sdb --random --open-au-nr=7
4MiB 27.3M/s
2MiB 26.4M/s
1MiB 25.6M/s
512KiB 24.8M/s
256KiB 2.16M/s

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