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Χωρίς να έχω καινούρια, σύγχρονη μητρική, έχω εκπλαγεί από τις επιδόσεις του. Μπαίνω στο ψητό:

Αγορασμένο 22,5 ευρώ. Δοκιμασμένο σε μητρική του 2012 Gigabyte B75-D3V με 2 USB 3.0 θύρες, i7 3770 και SSD Samsung Evo 860 σε SATA 3 και ενεργοποιημένο το Rapid Mode του Samsung Magician το οποίο χρησιμοποιεί RAM για να επιταχύνει τον σκληρό δίσκο.
370MB/s sustained ταχύτητα ανάγνωσης και σκαμπανεβάσματα από 52 έως 87 MB/s κατά την εγγραφή που σημαίνει κατά μέσο όρο γύρω στα 65 MB/s sustained ταχύτητα εγγραφής. Τα σκαμπανεβάσματα οφείλονται στο ότι το στικάκι έχει DRAM cache όπως έχουν οι καλοί SSD δίσκοι. Όσο το DRAM γεμίζει με δεδομένα για εγγραφή, η ταχύτητα είναι γρήγορη, όταν όμως αδειάζει από το DRAM στην μνήμη flash, η ταχύτητα πέφτει όπως είναι αναμενόμενο. Κατά μέσο όρο λοιπόν πιάνει 65 MB/s, το οποίο συμπέρανα αντιγράφοντας ένα αρχείο ~13,1 GB σε 3λ και 26δ. Το DRAM που έχει υπολογίζω πως είναι γύρω στα 768 ΜΒ.
Σε 4Κ επιδόσεις το CrystalDiskMark έδειξε 10MB/s ταχύτητα ανάγνωσης και 5ΜΒ/s ταχύτητα εγγραφής. Προσωπικά αυτό δεν με ενοχλεί. Το στικάκι είναι τεράστιας χωρητικότητας και το χρειάζομαι για να μεταφέρω μεγάλο όγκο δεδομένων τα οποία είναι πάντα πολύ μεγαλύτερα από 4Κ. Ένα πιο ρεαλιστικό τεστ που έκανα είναι εγγραφή 5000 αρχείων του 1ΜΒ σαν να ήταν αντιγραφή φωτογραφιών στο φλασάκι. Χρειάστηκε 1:53 sec που σημαίνει μέσος όρος εγγραφής 44,24MB/s.
Το γέμισα ολόκληρο και ευτυχώς δεν παρουσιάζει πτώση ταχύτητας κάτω από το αναμενόμενο (οι ταχύτητες που ανάφερα πιο πάνω), που να υποδηλώνει πρόβλημα στην μνήμη flash, όπως συμβαίνει με τα φθηνά. Ούτε από θερμοκρασίες παρουσιάζει πτώση ταχύτητας ακόμα και μετά από πολύωρα τεστ.
Σε αυτά τα λεφτά, οι επιδόσεις του είναι ασυναγώνιστες. Αν κάποιος θέλει απαραίτητα και υψηλές sequential ταχύτητες και επιδόσεις σε 4Κ, οι εναλλακτικές είναι Sandisk Extreme pro (που είναι αρκετά ακριβότερο) και Samsung Fit Plus.
Μου αρέσει που δεν έχει καπάκι και φαίνεται γερή κατασκευή, αλλά όχι η ανθεκτικότερη στην αγορά. Και από μέγεθος καλό είναι. Έχει και κόκκινο led που βρίσκεται εσωτερικά για ένδειξη ανάγνωσης/εγγραφής.
Στα αρνητικά βάζω την μικρή εγγύηση των 3 ετών. Αν καεί πριν την ώρα του ή αν αρχίσει και πέφτει η ταχύτητά του στο μέλλον, θα ανανεώσω το review.

Edit 24/11/2022: Έχουν γεμίσει οι γρήγοροι δίσκοι μου και έτσι έχω εγκαταστήσει και παίζω το Forza Horizon 4 από το φλασάκι αυτό, το οποίο έχω συνδέσει σε θύρα usb 3.0. Δεν αντιλαμβάνομαι καμία διαφορά σε σχέση με όταν είχα το παιχνίδι στον ssd, καμία καθυστέρηση, κανένα stutter, καθόλου frame drops. Είναι απίστευτο.

For the 7 euros it costs, it has incredible value for money. I have searched the entire internet and I can say that even from the manufacturer's datasheet, there is no difference from the newer model BT0037 that costs more.
I connected it to a computer with an old Intel dg41ty motherboard and Windows 10 x64, and Windows installed its own drivers quickly and the Bluetooth worked perfectly. I see no reason to bother with the accompanying CD.
It works in combination with the Edifier W800BT headphones, which connect quickly to the adapter. As soon as I turn on the headphones, they connect in fractions of a second. If they are already on and the computer boots up, they connect before the Windows welcome screen appears.
It doesn't have any interruptions even though it is connected to a rear USB port.
In terms of sound quality, it is exactly what you would expect from Bluetooth, without any interference.
It worked properly with an Xbox One S and PS4 controller. It can connect simultaneously with controllers and headphones.
It also worked with a Bluetooth keyboard from Microsoft without any issues.
Even the microphone of the Edifier works in Skype and Viber applications.
Overall, I am very satisfied without any complaints.

Unfortunately, this is a poorly constructed desk with flaws that require extra money, time, and effort in order to assemble it CORRECTLY and achieve its final form, the one you see in the product image.

Positives:
- One of the few at this price (49 euros).
- One of the few light-colored options to avoid darkening the space.
- Minimalistic and lightweight.
- Proper height without obstacles for legs under the desk surface.
- Ideal for not trapping the computer's warm air.
- Includes the only tool (Allen key) you will need to assemble it. Maybe...

Negatives:
- The surface has deep grooves that will definitely accumulate dirt, sweat, etc. over time, as you cannot clean it properly with a sponge. Also, because of these grooves, thin Razer mousepads do not stick well at all.
- This surface that looks like solid wood is actually a wood-patterned sticker stuck on melamine, which is the worst synthetic "wood" available. Additionally, in many places, it is not well adhered. Because of this, I cannot attach anything to the desk without the risk of causing damage. For example, on my main desk, I have the following items attached with hot glue: the wired remote control for the speakers, a USB hub, and a cable holder with the power supply for the monitor. I cannot do these things with this particular desk because of the sticker. Furthermore, in less than a year, the sticker has started to peel off in some areas.
- It arrived with rust and scratches. The photos are high-resolution with a large zoom. Right-click and View Image. (https://imgur.com/a/GwKbvdi)
- When I was screwing one of the four screws into the wood, it sounded like the wood was cracking. So, I did not tighten that screw for fear of breaking it. From the moment a screw goes into wood, it should have been designed to withstand tightening or a sturdier "wood" should have been used. And I am not talking about excessive tightening, not at all, just a loose screw with the Allen key provided in the package.
- It is not the most sturdy, robust, or durable construction. On my other desk, which I have had for 15 years, I can climb on it as if it were a rock. This desk is not even close to that level. Yes, I know that desks are not intended for such use, but I just want to emphasize that this particular desk has weak points even for normal conditions, while for this price, you can find sturdy desks. It has very few assembly points, which makes it weak and susceptible to being pushed, dragged, or bumped to the right or left, especially when the legs stick to the joint from the tiles or have resistance on the carpet. If a screw is tightened a little too much, there is a risk of breaking the thread. Pushing it can cause the legs to become crooked or the threads to break from the holes. It is a desk that you assemble once, maybe twice, place it in its position, and do not move it or sit on it, treat it with care.
- The main reason why this desk was a big disappointment for me is because it came with a defect due to poor design, and I will try to describe it as best as I can, with the help of photos. The photos are high-resolution with a large zoom. Right-click and View Image. It has two iron bars on the back which are meant to be diagonally screwed in order to provide stability and durability to the legs, minimizing the risks I described above. These two diagonal iron bars are visible in the product photo. These two bars are tubes that are forged, flat, and perforated at their ends so that they can rest on the frame, allowing the screw to be inserted and tightened. One of the problems is that they should have been forged more at their ends because the tubular piece rests on the frame, resulting in the hole being half an inch away from the point where it should be screwed and the screw being in the air. To solve this problem, I had to get a hammer and forge the ends to enlarge the flat piece so that it can touch and be screwed in at the two points of the frame. When I did this, the paint came off, so another problem arose that needed to be solved. Extra cost for buying paint and wasted time because the paint takes longer to dry in winter. After this problem was solved, I discovered another one. The two holes in each iron bar were closer together than the corresponding ones in the rest of the frame, causing the screws to not reach the corresponding holes in the frame. Extra cost (9 euros) and wasted time for buying good drills to open new holes in the right places, create new threads, and be able to screw in the two iron bars.

Final conclusion, cheap costs more in the end.

I bought them for 35 euros. I think for this money I got the best available headphones on the market.

I read many comments that these specific headphones do not have the strongest bass and that they are more suitable for low-budget studio monitor use with a flat sound. This made me very skeptical because when I listen to music, I want to hear sound as if it's coming from a full-range speaker and not an old radio. However, for the low-quality music I listen to (trance, prog trance, psytrance, prog psy, psy chill, chillstep), they were able to handle it perfectly and I am very satisfied, even with the low frequencies.

Another thing that made me skeptical about these headphones is that the advertised sensitivity was much lower compared to three different models of Sennheiser headphones that I had in the past, which had the same impedance. What I found is that the headphones are very loud to the point that they surprised me, and that the advertised sensitivity of the Sennheiser headphones was probably fake. However, it should be taken into consideration that for the sound to be loud, the output to which they are connected must also be powerful, and the sound file itself must have volume.

Other points that impressed me with these headphones are that they have 4cm drivers and the difference is noticeable in practice (the sound has volume), they are truly over-ear and not on-ear, they are very comfortable on the ear and head and relatively comfortable to wear with glasses, they feel very light on the head, they are self-adjusting and can be worn directly without needing to adjust their length, the leather cushions can be changed and replacements are available from the company, the cable goes only to one earpiece and the sound is transmitted to the other earpiece through the metal parts that look like a headband and not through a cable (!), the cable does not tangle easily and does not easily break, the cable is 2.5 meters long and I can comfortably use them with the computer or from the computer to the couch, I really like their design (subjectively), and they come with an adapter from the manufacturer.

As for the negatives, their mediocre sound isolation in both directions (I can hear everything from the outside, and others can hear my music even at medium volume), they are not suitable for DJ use (personally, it doesn't bother me) because they require two hands to put them on and take them off and they do not rotate to listen only from one earpiece, they take up space and do not fold (personally, it doesn't bother me) to be easily transported, they are too big to hang around my neck, I am skeptical about their build quality because they give me the impression that with a single press, the two metal parts that act as a headband can break, and finally, the cable is made of a material that makes it "stick" instead of sliding (but we can't have everything since each material has its own advantages and disadvantages).