---
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

NameDescriptionComputers[Keytops for QL](/product/keytops-for-ql/)
[Sinclair Research Ltd.](/company/sinclair-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 membrane](/product/ql-keyboard-membrane/)
[Mechanical Affinity](/company/mechanical-affinity/)

Sinclair QL### Miscellaneous

NameDescriptionComputers[Internal battery backed clock for QL](/product/internal-battery-backed-clock-for-ql/)
[Mechanical Affinity](/company/mechanical-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 case](/product/ql-case/)
[Sinclair Research Ltd.](/company/sinclair-research-ltd/)

Contains keys and bare motherboard. Not available directly from Sinclair; this was available from third-party vendors.Sinclair QL### Power

NameDescriptionComputers[QL Power Supply](/product/ql-power-supply/)
[Sinclair Research Ltd.](/company/sinclair-research-ltd/)

Replacement power supply. Not available directly from Sinclair; this was available from third-party vendors.Sinclair QL### RAM

NameDescriptionComputers[MZ512K](/product/mz512k/)
[Matthew Zenkar](/company/matthew-zenkar/)

512K RAM expansion for the Sinclair QL featuring no wait-state memory and full through port.Sinclair QL### ROM

NameDescriptionComputers[QL Internal ROM Board](/product/ql-internal-rom-board/)
[Mechanical Affinity](/company/mechanical-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[Speedscreen](/product/speedscreen/)
[Mechanical Affinity](/company/mechanical-affinity/)

ROM for ROMport.Sinclair QL