---
title: "Hardware for the Sinclair QL"
id: "2009"
type: "page"
slug: "hardware-for-the-sinclair-ql"
published_at: "2020-07-24T13:16:22+00:00"
modified_at: "2024-06-28T01:00:26+00:00"
url: "http://localhost/computers/sinclair-ql/hardware-for-the-sinclair-ql/"
markdown_url: "http://localhost/computers/sinclair-ql/hardware-for-the-sinclair-ql.md"
---

### Keyboard

| Name | Description | Computers |
| --- | --- | --- |
| Keytops for QLSinclair Research Ltd. | Use to replace broken or missing key or whole set. Not available directly from Sinclair; this was available from third-party vendors. | Sinclair QL |
| QL keyboard membraneMechanical Affinity |  | Sinclair QL |

### Miscellaneous

| Name | Description | Computers |
| --- | --- | --- |
| Internal battery backed clock for QLMechanical Affinity | Uses lithium battery, good for far longer than ordinary batteries. Plugs in to 8049 socket, and 8049 is installed in it. | Sinclair QL |
| QL caseSinclair Research Ltd. | Contains keys and bare motherboard. Not available directly from Sinclair; this was available from third-party vendors. | Sinclair QL |

### Power

| Name | Description | Computers |
| --- | --- | --- |
| QL Power SupplySinclair Research Ltd. | Replacement power supply. Not available directly from Sinclair; this was available from third-party vendors. | Sinclair QL |

### RAM

| Name | Description | Computers |
| --- | --- | --- |
| MZ512KMatthew Zenkar | 512K RAM expansion for the Sinclair QL featuring no wait-state memory and full through port. | Sinclair QL |

### ROM

| Name | Description | Computers |
| --- | --- | --- |
| QL Internal ROM BoardMechanical Affinity | Allows you to put your favorite ROM version (JM , JS, JSU, MGUS, MGUK , etc.) on an EPROM. This will lower power consumption by the QL by about 20% & drop the internal heat by close to 50 degrees Fahrenheit. | Sinclair QL |
| SpeedscreenMechanical Affinity | ROM for ROMport. | Sinclair QL |