0
There are no votes yet.
Questions
0
There are no votes yet.
Answers
0
There are no votes yet.
Mindestens gibt diese Kompatibel 3G/4G USB modems (getestet) für V5 hardware version:
Huawei E3372h-320 (aber mit firmware upgrade zu V1.5.0, einfach gemacht vom Advanced Optionen)
Huawei E8278
Diese beide sind ganz 4G: 150 MBits/s download und 50 MBits/s upload.
0
There are no votes yet.
But you could measure it, you have one, just take one out of the box and measure with your phone at 1m distance. This information is also interesting for me.
0
There are no votes yet.
Ja, es gibt ein Testbericht hier:
youtube.com/watch?v=IMiDdN7...
Persönnlich habe Ich dieses Projektor sehr gerne. Es ist ganz Wichtig das Keystone richtig zu einstellen, sonnst ist alles unscharf. Wir mussen zuerst das Menu "Advanced / V-Keystone" einstellen, bis es gerade ist, und nur dann das Keystone knopf brauchen, und 2-3 mal so machen. Dann ist das Bild ganz tip top und Scharf auf das ganze Grösse.
Die Helligkeit is gut denke Ich, mindestens genug für das Licht von heraus innen zu lassen, aber nicht direkt Sonnen. Es kann auch mit das Zimmer Licht gebraucht werden, wir sehen immer noch das Bild, aber die dunkel Farben sind nicht so gut. Es ist besser das Licht ausstellen.
Für mich war es kein problem zu Bestellen, kommte sehr schnell.
Ratings
+2
Helpful
-
+2
find this rating helpful
Very slow speeds after 3 to 5 GB of transfer
The Intenso 2.5’’ SSH High is a very low quality drive.
The datasheet specifications say up to 520 MB/s reading and 480 MB/s writing.
However, the real speed is much lower than that because the high speed is only due to an internal RAM of about 4 GB which is used for the cache. Hence it is only the transfert to this RAM so you will reach the port max speed limit.
The real inside speeds are as following :
Read = 122 MB/s (196s for 23913 MB)
Write = 33.2 MB/s (719s for 23913 MB)
With these speeds, you need to wait 4000 / 33 = 121s = 2 minutes until the internal write cache is cleared.
So as long as this 4GB write cache is not filled, you can write at 386 MB/s. But as soon as it is full, the write speed will drastically drop down to minimum 5.5 MB/s, with usually a mean write speed of 33MB/s.
The same for reading. At beginning the first 3 GB are at a speed of 407MB/s, then it drops to 122 MB/s mean read speed. This limitation seems to be firmware capped as there is no reason for that limit else.
So this drive is good only if you need to write quickly some files but not for a full transfer of more than 3 to 5 GB as the specified speed will not be reached and only the lowest real values indicated here will be met.
Absolute max speeds (to/from a RAM disk):
Read = 407 MB/s
Write = 386 MB/s
…more
The datasheet specifications say up to 520 MB/s reading and 480 MB/s writing.
However, the real speed is much lower than that because the high speed is only due to an internal RAM of about 4 GB which is used for the cache. Hence it is only the transfert to this RAM so you will reach the port max speed limit.
The real inside speeds are as following :
Read = 122 MB/s (196s for 23913 MB)
Write = 33.2 MB/s (719s for 23913 MB)
With these speeds, you need to wait 4000 / 33 = 121s = 2 minutes until the internal write cache is cleared.
So as long as this 4GB write cache is not filled, you can write at 386 MB/s. But as soon as it is full, the write speed will drastically drop down to minimum 5.5 MB/s, with usually a mean write speed of 33MB/s.
The same for reading. At beginning the first 3 GB are at a speed of 407MB/s, then it drops to 122 MB/s mean read speed. This limitation seems to be firmware capped as there is no reason for that limit else.
So this drive is good only if you need to write quickly some files but not for a full transfer of more than 3 to 5 GB as the specified speed will not be reached and only the lowest real values indicated here will be met.
Absolute max speeds (to/from a RAM disk):
Read = 407 MB/s
Write = 386 MB/s
…more
+2
Helpful
-
+2
find this rating helpful
>= 128 GB version: Very fast stick
Real speeds in classic Windows 11 usage (512GB version):
Read: 220 MB/s
Write: 240 MB/s < 2GB ; 80 MB/s > 2GB.
This HP x770w 512 GB USB memory stick is really fast, has a nice design, it is small, has no caps so you cannot lose it, and it locks once you have opened it, so you can insert it easily and remove it easily.
The speed matches the specification, which is 400 MB/s for reads and 250 MB/s for writes, but only with Crystal Disk Mark software on Windows, else slower like shown above.
Speed depends a lot on the stick size so >= 128 GB advised:
Stick size [GB] : Read [MB/s] - Write [MB/s]
32 : 75 - 30
64 : 75 - 30
128 : 200 - 100
256 : 400 - 180
512 : 400 - 250
Details for big files on an NTFS partition:
READ:
If you read a 10 GB file you will get 220 MB/s mean speed for the whole file. It goes up to 280 MB/s max but is usually slower. After about 6 GB, it will drop to 180 MB/s, and then 150 MB/s, and then 120 MB/s.
But 220 MB/s read speed is still very fast for a USB stick even if the specification is not met.
However Crystal Disk Mark shows a read speed of 382 MB/s, almost meeting the specs.
Random 4K: 12.2 MB/s ; 2974 IOPS
WRITE:
If you try to write 2 GB on the stick empty in NTFS, you will get 240MB/s. However with a few files on it it goes down to 112 MB/s. Then if you write bigger files than 2GB or so, it goes down to 80 MB/s mean value minimum. So for a 10 GB big file it reaches 93 MB/s mean speed. That is much slower than the specification.
However Crystal Disk Mark shows 256 MB/s, even exceeding the spec.
Random 4K: 3.2 MB/s ; 794 IOPS
The 256 GB version should provide the same results, except the write speed specified at 180 MB/s instead of 250 MB/s.
WARNING: Versions with 32GB / 64GB sizes have a VERY bad write IOPS:
Read RND 4K: 7.9 MB/s ; 1929 IOPS
Write RND 4K: 0.0 MB/s ; 0.2 IOPS
So the stick is really fast if size >= 128 GB and still very cheap.
It is also a very small, practical and nice looking stick.
…more
Read: 220 MB/s
Write: 240 MB/s < 2GB ; 80 MB/s > 2GB.
This HP x770w 512 GB USB memory stick is really fast, has a nice design, it is small, has no caps so you cannot lose it, and it locks once you have opened it, so you can insert it easily and remove it easily.
The speed matches the specification, which is 400 MB/s for reads and 250 MB/s for writes, but only with Crystal Disk Mark software on Windows, else slower like shown above.
Speed depends a lot on the stick size so >= 128 GB advised:
Stick size [GB] : Read [MB/s] - Write [MB/s]
32 : 75 - 30
64 : 75 - 30
128 : 200 - 100
256 : 400 - 180
512 : 400 - 250
Details for big files on an NTFS partition:
READ:
If you read a 10 GB file you will get 220 MB/s mean speed for the whole file. It goes up to 280 MB/s max but is usually slower. After about 6 GB, it will drop to 180 MB/s, and then 150 MB/s, and then 120 MB/s.
But 220 MB/s read speed is still very fast for a USB stick even if the specification is not met.
However Crystal Disk Mark shows a read speed of 382 MB/s, almost meeting the specs.
Random 4K: 12.2 MB/s ; 2974 IOPS
WRITE:
If you try to write 2 GB on the stick empty in NTFS, you will get 240MB/s. However with a few files on it it goes down to 112 MB/s. Then if you write bigger files than 2GB or so, it goes down to 80 MB/s mean value minimum. So for a 10 GB big file it reaches 93 MB/s mean speed. That is much slower than the specification.
However Crystal Disk Mark shows 256 MB/s, even exceeding the spec.
Random 4K: 3.2 MB/s ; 794 IOPS
The 256 GB version should provide the same results, except the write speed specified at 180 MB/s instead of 250 MB/s.
WARNING: Versions with 32GB / 64GB sizes have a VERY bad write IOPS:
Read RND 4K: 7.9 MB/s ; 1929 IOPS
Write RND 4K: 0.0 MB/s ; 0.2 IOPS
So the stick is really fast if size >= 128 GB and still very cheap.
It is also a very small, practical and nice looking stick.
…more
+1
Helpful
-
+1
find this rating helpful
Very good SSD for laptops
This Kingston NV1 2TB SSD drive is quite good and fast.
Compared to the Crucial P2 2TB, strangely the Crystal Disk Mark results are lower (and sometimes even down to 350MB/s), however the drive works much better in real usage on a laptop. It makes a Dell Inspiron 7306 laptop boot in 13 seconds every time instead of 1/3 of the time up to 55 seconds with the Crucial P2, with the same image, for any reason!
Hence I strongly recommend it over the Crucial P2 due to this. I am very satisfied with it.
The speeds are the following, when tested on a Dell Inspiron 7306 laptop:
Specifications : 2100 / 1700 MB/s R/W.
Crystal Disk Mark (8Q): 2193 / 1690 MB/s R/W.
Manual transfer: 1350 / 1558 MB/s R/W.
IOPS: 117'000 (Crystal Disk Mark on Dell Inspiron 7306 laptop)
TBW: 480 TBW (specs)
We see that the specifications are met.
Also it is faster in manual file copy than the Crucial P2:
Kingston NV1 2TB : 1350 / 1558 MB/s R/W.
Crucial P2 2TB : 907 / 1030 MB/s R/W.
It heats less than the Crucial P2, with 5°C less, for the same full test of Crystal Disk Mark.
The power consumption is about 0.12W more than the Crucial P2 in idle mode, but in activity it heats much less and consumes less too.
I recommend it for any usage and especially for laptops.
…more
Compared to the Crucial P2 2TB, strangely the Crystal Disk Mark results are lower (and sometimes even down to 350MB/s), however the drive works much better in real usage on a laptop. It makes a Dell Inspiron 7306 laptop boot in 13 seconds every time instead of 1/3 of the time up to 55 seconds with the Crucial P2, with the same image, for any reason!
Hence I strongly recommend it over the Crucial P2 due to this. I am very satisfied with it.
The speeds are the following, when tested on a Dell Inspiron 7306 laptop:
Specifications : 2100 / 1700 MB/s R/W.
Crystal Disk Mark (8Q): 2193 / 1690 MB/s R/W.
Manual transfer: 1350 / 1558 MB/s R/W.
IOPS: 117'000 (Crystal Disk Mark on Dell Inspiron 7306 laptop)
TBW: 480 TBW (specs)
We see that the specifications are met.
Also it is faster in manual file copy than the Crucial P2:
Kingston NV1 2TB : 1350 / 1558 MB/s R/W.
Crucial P2 2TB : 907 / 1030 MB/s R/W.
It heats less than the Crucial P2, with 5°C less, for the same full test of Crystal Disk Mark.
The power consumption is about 0.12W more than the Crucial P2 in idle mode, but in activity it heats much less and consumes less too.
I recommend it for any usage and especially for laptops.
…more
Discussions
You haven't taken part in any discussions yet.
Followed discussions
You aren't following any discussions yet.