Photos and Features

The G515 Lightspeed TKL is as the name would imply a TKL or tenkeyless keyboard. This means that it has a standard key layout but doesn’t have the number pad at the end. It is also Logitech’s low-profile design. So in addition to being shorter, it is also thinner and uses lower profile keycaps and switches to go with a design that is closer to an old school membrane keyboard than what most people think of a mechanical keyboard as. The G515 Lightspeed TKL is 368 mm long and is 150 mm from bottom to top. Then for thickness, it is just 22 mm thick. For comparison, the smaller Logitech G Pro X 60 Lightspeed that I took a look at is 290 mm wide and 103 mm tall because of its more compact 60% layout but that keyboard is 39 mm thick to the 22 mm of the G515 Lightspeed TKL.

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Because the G515 Lightspeed TKL does use a traditional layout, it is possible to use aftermarket keycaps with it. But you will need keycaps that are designed to work with a low-profile keyswitch. It is available in both black and white color options, sadly the pink that Logitech has used in some of their Pro lineup isn’t available here and I do feel that bright colors like that and more could be a good fit for this lower profile design. Part of the extra height from the bottom edge to the top edge is because there is an inch thick bezel at the top whereas the sides and bottom edges have no bezel at all. The top bezel is raised and has a dark grey finish to the rest of the keyboards black finish. This has two pinhole status LEDs on the right, one for the battery and the other for the caps lock. Then on the left, this is where the game mode key and buttons to switch between Lightspeed and Bluetooth wireless modes. The G515 Lightspeed TKL has the included wireless dongle that you can use which uses Logitech’s lightspeed wireless technology for the fastest possible response. But Bluetooth is also available for using it with devices that only support Bluetooth. You can also switch between two different devices using this setup. All of the low-profile keycaps are PBT and double-shot so you don’t have to worry about wear in the future and every key has RGB backlighting as well. There are also a few function layer keys pre-programs and labeled on the front edge where you can see it when typing. These just handle the volume and media controls mostly but the F8 key does let you flip through the backlighting brightness as well.

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The overall thickness (well thinness really) of the G515 Lightspeed TKL isn’t really obvious until you see it from a side profile. The grey used on the top bezel wraps around the back of the keyboard and on the sides, you can see how it has both the dark grey and black. The right side has the Logitech G logo molded into it as well as the G515 printed on it. Then on the back, there is one USB Type-C connection for charging and a single switch to turn the keyboard off when needed. The side profile also shows off how the low profile keycaps get rid of any extra shaping from row to row, it is completely flat. The keycaps do still have a little cup to the top of the cap but that is less pronounced than the traditional OEM keycap profile you would see on most mechanical keyboards. This is a lot closer to a laptop keyboard really.

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The bezel-less design does give you a peak at the key switches as well. You can pick from a Linear or Tactile switch with both being close in resistance at 43g for the linear and 45g for the tactile. They have a 3.2mm travel distance and the actuation point is short at 1.3mm. Our test keyboard has brown tactile switches. The widest keys of course have stabilizers which have their own Cherry-like stabilizers but the stabilizer bar between them isn’t under the backplate, it is tucked in just behind the switch.

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The bottom of the G515 Lightspeed TKL has a unique striped texture that I haven’t seen used before running across most of the bottom of the keyboard. The exception to that is the area at the top which has the information sticker on it. That touched on the exact model name including the switch type, all of the manufacturer information, and also your serial number as well. That is also where the wireless dongle hiding spot is as well. They have a grove carved out with a USB-sized hole at the end that the dongle will slide into for storage. They have it labeled, but the dongle also comes in this spot so once you find it the first time you will know what it is used for. For grip the bottom has five rubber grips on the main base, they are thin but wide with three along the front edge and two in the back corners. There are grips on the flip-out feet as well. For the flip-out feet, you can pick from two sizes and Logitech has those labeled by the angle that it gives the G515 Lightspeed TKL. You have 4 and 6 degree options.

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There are two extremely small screws on the back visible. These can be removed and the back panel comes off exposing the battery for easy replacement. This puts the G515 Lightspeed TKL in compliance with the EU law requiring replaceable batteries WAY ahead of the 2027 implementation. It also means that you won’t have to throw away your keyboard if the battery life gets bad and on that same note from Logitech’s point of view, I bet it is a lot cheaper and easier to send out just a battery rather than replacing the entire keyboard. You will need a #00 Philips screwdriver which not everyone has to remove the screws. This also gave us a good look at the battery and we can see the G515 Lightspeed TKL has a Li-Po battery with a model number 325085 and a capacity of 1500 mAh or 5550Wh. It has a small cable and a plug that is accessible. A quick Google shows that you can get these exact batteries for $12 but none look like that will come with that plug. I wonder if Logitech themselves will sell them in the future.

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