How to Choose a Numeric Keypad for Windows: Connection and Keys

Per the makers’ specs, if you also want = and BS keys for Excel, go wired. If Tab and 00 are enough, any connection type works. This guide compares keypads by the makers’ specs from ELECOM, Sanwa Supply and BUFFALO, and ends with picks for US readers on Amazon.com.

The spec guidance applies to any keypad. According to ELECOM’s product pages, the 2.4 GHz models plug a USB-A receiver into the PC, and the Bluetooth models use the PC’s own Bluetooth.

In this guide, typing feel, noise and speed weren’t tested on real hardware and aren’t judged; only the makers’ specs are compared.

Wired, 2.4 GHz or Bluetooth: choosing a connection

Per the makers’ specs, choose wired to avoid batteries, 2.4 GHz for a USB receiver that needs no PC Bluetooth, or Bluetooth for no receiver if the PC has it. Both wireless types are cable-free and run on batteries, and the wired models list no battery.

According to ELECOM’s product pages, the Bluetooth models need a PC with Bluetooth support, and a PC without it can use a separately sold Bluetooth adapter.

ELECOM’s wired and 2.4 GHz models all use a USB-A connector. Sanwa Supply and BUFFALO connectors weren’t checked.

Keypads by condition: what the table shows

Three terms first:

• BS is Backspace, which deletes the last character.
• Pantograph and scissor keys are the low, flat laptop-style switches that make a keypad slim. The Japanese models in the table are pantograph; the US pick is scissor and its maker calls it slim.
• “NumLock handling stated” means the maker says how the keypad’s NumLock works with the PC, which matters if numbers don’t type.

To choose, pick the connection first, then the keys you need, then slim or not if you carry it, then whether NumLock handling should be stated. The table shows whether the makers’ specs list each feature.

The picks at the end come from Amazon.com listings checked in October 2026. The criteria were:

• New, and sold by Amazon.com or the maker’s official store
• Model number matches the maker’s specs
• At least 100 ratings and a 4-star average
• For the Japanese picks only: no warning from Sakura Checker, a fake-review checker
• Windows listed in the maker’s supported OS (7 or higher for the wired US slot; Windows 11 for the Japanese slots). Tab and 00 keys are not required for the US slot | Connection | Tab and 00 | Slim (pantograph or scissor keys) | BS and = | NumLock handling stated | Connector | | :— | :— | :— | :— | :— | :— | | Wired USB | Listed | Listed | Listed | Listed | USB-A | | 2.4 GHz | Listed | Listed | Not listed | Listed | USB-A | | Bluetooth | Listed | Listed | Not listed | Listed | None (uses the PC’s Bluetooth) |

The connector column describes the ELECOM models.

In this guide, each column is judged on its own, so no single model necessarily meets every condition in a row.

Per the makers’ specs, for example, no slim wired model lists both BS and =. Use the finder below to check combinations.

In the calculator, pick a connection, the keys you want, whether it should be slim, and whether NumLock handling must be stated. It lists models whose official specs match your choices. The US picks are in the last section.

Excel keys: Tab, 00, BS and =

On the makers’ product pages, BUFFALO describes Tab as handy for moving between Excel cells and selecting functions, and 00 for large amounts. ELECOM’s wired model with BS and = calls = and parentheses handy for functions, and 00 and BS handy for numbers.

In this guide, Tab moves between cells, and 00 helps enter large amounts. The = and parentheses keys help enter formulas. BS works as Backspace and deletes the last character.

Per the makers’ specs, Tab and 00 keys are listed on models of every connection type. Only wired models list both BS and = keys; no wireless model does.

Keys are judged by whether the maker lists them. A key missing from the list may still be on the keypad, so check the layout diagram.

According to ELECOM’s product pages, for the wired model with BS and = keys, the maker notes there’s no kana input mode. Special keys such as = and parentheses need romaji input.

The NumLock problem and what makers say

According to BUFFALO’s product pages, typing numbers on a USB keypad requires turning its NumLock on. On most laptops, that turns part of the built-in keyboard into number keys.

Per the makers’ specs, each maker describes its fix in its own words. ELECOM says some wired models solve it in hardware, and BUFFALO says its keypads are designed not to sync the PC’s NumLock with the keypad’s. Sanwa Supply calls its keypads NumLock-independent.

Thickness and weight

Per the makers’ specs, heights run 17–21.5 mm for pantograph models and 20–26.6 mm for membrane models, so membrane models can be slim too.

Weights run 70–143 g.

For carrying, look for a slim wireless keypad with pantograph keys. The makers list such models in both 2.4 GHz and Bluetooth.

Wireless battery life and paired devices

Per the makers’ specs, ELECOM states an estimated battery life of 10 months to 1.5 years with alkaline batteries. Sanwa Supply states 70 to 800 hours of continuous operation. The measures differ, so they can’t be compared.

ELECOM’s Bluetooth models connect to one device only, and Sanwa Supply’s product pages give no device count. Microsoft’s support page says the Microsoft Number Pad pairs with up to 3 devices, but its availability wasn’t checked.

Picks for US readers

On Amazon.com as checked in October 2026, one wired slim keypad met the listing criteria: the Perixx PERIPAD-202C. Its maker lists Windows 7 or higher but not Windows 11. The maker’s page lists no Tab or 00 key; only the Amazon product title says Tab.

Wired slim keypad

It has scissor keys and two USB-A ports on the side.

Sold by Perixx USA and shipped by Amazon. Free delivery depends on Prime membership or order size. The Amazon listing is the USB-C model with two USB-A hub ports; the USB-A-only model is a separate listing.

The Japanese version picks ELECOM models sold in Japan. Check the specs above against any keypad before buying.

• Sources: ELECOM product pages for TK-TCM011BK, TK-TCM015BK, TK-TCP018BK, TK-TDM017BK, TK-TDP019BK and TK-TBM023SKBK
• Sources: Sanwa Supply product page and BUFFALO product page
• Sources: Microsoft Number Pad support and Windows 2000 registry reference (legacy)

FAQ

Is wired, 2.4 GHz or Bluetooth better for a numeric keypad?

Per the makers’ specs, choose wired to avoid batteries, 2.4 GHz for a USB receiver that needs no PC Bluetooth, or Bluetooth for no receiver if the PC has it.

How long do wireless keypad batteries last, and how many devices can they pair with?

Per the makers’ specs, battery life is 10 months to 1.5 years by ELECOM’s estimate and 70 to 800 hours of continuous use for Sanwa Supply. Those measures can’t be compared, and each uses one AA or AAA battery.

ELECOM’s Bluetooth models connect to one device only.

Do you need Tab, 00, BS and = keys for Excel?

As of October 2026, per the makers’ specs, Tab moves between cells, and 00 helps enter large amounts. The = and parentheses keys help enter formulas, and BS deletes the last character.

Tab and 00 appear on every connection type, and only wired models list both BS and =.

What is the NumLock problem, and why won’t a keypad type numbers?

According to BUFFALO’s product pages, the keypad’s NumLock must be on to type numbers. On most laptops, that also turns part of the built-in keyboard into number keys.

On the makers’ product pages, some of ELECOM’s wired models and Sanwa Supply’s and BUFFALO’s keypads state how they handle it. Per a legacy Microsoft document (the Windows 2000 registry reference), Windows saves the NumLock state at logoff or shutdown and restores it at the next logon.

No current official page on how Windows 11 handles this was found, so this article doesn’t judge it.

Which keypad is best to carry with a laptop?

For carrying, look for a slim wireless keypad with pantograph keys, since the makers list such models in both 2.4 GHz and Bluetooth. The picks section has a slim wired keypad that met this guide’s Amazon.com criteria.

Do numeric keypads work with a Mac?

As of October 2026, per the makers’ specs, for a Mac, pick an ELECOM model that lists macOS. The supported-OS field shows macOS High Sierra 10.13 for pantograph models and macOS Big Sur 11 for models ending in SKBK.

Check that your macOS is on the list.